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Finding the Fourth Proportional to 257,044.52, 385,584.80 and 79,528.16

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Solution

The fourth proportional to 257,044.52, 385,584.80 and 79,528.16 is: 119,297.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,044.52 : 385,584.80 = 79,528.16 : x
  2. Step 2: Convert to fraction form
    257,044.52/385,584.80 = 79,528.16/x
  3. Step 3: Cross multiply
    257,044.52x = 385,584.80 × 79,528.16
  4. Step 4: Simplify right side
    257,044.52x = 30,664,849,667.97
  5. Step 5: Solve for x
    x = 30,664,849,667.97/257,044.52
  6. Step 6: Final answer
    x = 119,297.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.