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Finding the Fourth Proportional to 430.41, 594.05 and 282.77

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Solution

The fourth proportional to 430.41, 594.05 and 282.77 is: 390.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.41 : 594.05 = 282.77 : x
  2. Step 2: Convert to fraction form
    430.41/594.05 = 282.77/x
  3. Step 3: Cross multiply
    430.41x = 594.05 × 282.77
  4. Step 4: Simplify right side
    430.41x = 167,975.13
  5. Step 5: Solve for x
    x = 167,975.13/430.41
  6. Step 6: Final answer
    x = 390.27

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Find fourth proportional to 215.21, 297.02 and 141.38
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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.