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Finding the Fourth Proportional to 968.51, 1,452.55 and 275.17

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Solution

The fourth proportional to 968.51, 1,452.55 and 275.17 is: 412.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.51 : 1,452.55 = 275.17 : x
  2. Step 2: Convert to fraction form
    968.51/1,452.55 = 275.17/x
  3. Step 3: Cross multiply
    968.51x = 1,452.55 × 275.17
  4. Step 4: Simplify right side
    968.51x = 399,690.92
  5. Step 5: Solve for x
    x = 399,690.92/968.51
  6. Step 6: Final answer
    x = 412.69

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Half scale
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Double scale
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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.