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Finding the Fourth Proportional to 432.20, 595.06 and 402.76

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Solution

The fourth proportional to 432.20, 595.06 and 402.76 is: 554.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.20 : 595.06 = 402.76 : x
  2. Step 2: Convert to fraction form
    432.20/595.06 = 402.76/x
  3. Step 3: Cross multiply
    432.20x = 595.06 × 402.76
  4. Step 4: Simplify right side
    432.20x = 239,666.37
  5. Step 5: Solve for x
    x = 239,666.37/432.20
  6. Step 6: Final answer
    x = 554.53

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Find fourth proportional to 216.10, 297.53 and 201.38
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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.