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Finding the Fourth Proportional to 531.45, 732.65 and 375.93

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Solution

The fourth proportional to 531.45, 732.65 and 375.93 is: 518.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.45 : 732.65 = 375.93 : x
  2. Step 2: Convert to fraction form
    531.45/732.65 = 375.93/x
  3. Step 3: Cross multiply
    531.45x = 732.65 × 375.93
  4. Step 4: Simplify right side
    531.45x = 275,423.23
  5. Step 5: Solve for x
    x = 275,423.23/531.45
  6. Step 6: Final answer
    x = 518.25

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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.