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Finding the Fourth Proportional to 424,465.16, 636,478.63 and 124,906.82

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Solution

The fourth proportional to 424,465.16, 636,478.63 and 124,906.82 is: 187,295.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,465.16 : 636,478.63 = 124,906.82 : x
  2. Step 2: Convert to fraction form
    424,465.16/636,478.63 = 124,906.82/x
  3. Step 3: Cross multiply
    424,465.16x = 636,478.63 × 124,906.82
  4. Step 4: Simplify right side
    424,465.16x = 79,500,518,176.60
  5. Step 5: Solve for x
    x = 79,500,518,176.60/424,465.16
  6. Step 6: Final answer
    x = 187,295.75

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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.