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Finding the Fourth Proportional to 297,068.64, 442,516.08 and 280,972.32

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Solution

The fourth proportional to 297,068.64, 442,516.08 and 280,972.32 is: 418,538.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,068.64 : 442,516.08 = 280,972.32 : x
  2. Step 2: Convert to fraction form
    297,068.64/442,516.08 = 280,972.32/x
  3. Step 3: Cross multiply
    297,068.64x = 442,516.08 × 280,972.32
  4. Step 4: Simplify right side
    297,068.64x = 124,334,769,634.91
  5. Step 5: Solve for x
    x = 124,334,769,634.91/297,068.64
  6. Step 6: Final answer
    x = 418,538.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.