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Finding the Fourth Proportional to 424,044.46, 636,160.56 and 139,723.57

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Solution

The fourth proportional to 424,044.46, 636,160.56 and 139,723.57 is: 209,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,044.46 : 636,160.56 = 139,723.57 : x
  2. Step 2: Convert to fraction form
    424,044.46/636,160.56 = 139,723.57/x
  3. Step 3: Cross multiply
    424,044.46x = 636,160.56 × 139,723.57
  4. Step 4: Simplify right side
    424,044.46x = 88,886,624,536.40
  5. Step 5: Solve for x
    x = 88,886,624,536.40/424,044.46
  6. Step 6: Final answer
    x = 209,616.29

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1.5x scale

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.