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Finding the Fourth Proportional to 571.38, 856.62 and 293.28

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Solution

The fourth proportional to 571.38, 856.62 and 293.28 is: 439.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.38 : 856.62 = 293.28 : x
  2. Step 2: Convert to fraction form
    571.38/856.62 = 293.28/x
  3. Step 3: Cross multiply
    571.38x = 856.62 × 293.28
  4. Step 4: Simplify right side
    571.38x = 251,229.51
  5. Step 5: Solve for x
    x = 251,229.51/571.38
  6. Step 6: Final answer
    x = 439.69

Related Problems

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Half scale
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Double scale
Find fourth proportional to 572.38, 858.12 and 294.28
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.