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Finding the Fourth Proportional to 534.61, 737.58 and 310.57

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Solution

The fourth proportional to 534.61, 737.58 and 310.57 is: 428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.61 : 737.58 = 310.57 : x
  2. Step 2: Convert to fraction form
    534.61/737.58 = 310.57/x
  3. Step 3: Cross multiply
    534.61x = 737.58 × 310.57
  4. Step 4: Simplify right side
    534.61x = 229,070.22
  5. Step 5: Solve for x
    x = 229,070.22/534.61
  6. Step 6: Final answer
    x = 428.48

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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.