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Finding the Fourth Proportional to 337.40, 464.58 and 278.16

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Solution

The fourth proportional to 337.40, 464.58 and 278.16 is: 383.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.40 : 464.58 = 278.16 : x
  2. Step 2: Convert to fraction form
    337.40/464.58 = 278.16/x
  3. Step 3: Cross multiply
    337.40x = 464.58 × 278.16
  4. Step 4: Simplify right side
    337.40x = 129,227.57
  5. Step 5: Solve for x
    x = 129,227.57/337.40
  6. Step 6: Final answer
    x = 383.02

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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.