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Finding the Fourth Proportional to 424,156.45, 636,229.06 and 104,311.07

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Solution

The fourth proportional to 424,156.45, 636,229.06 and 104,311.07 is: 156,465.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,156.45 : 636,229.06 = 104,311.07 : x
  2. Step 2: Convert to fraction form
    424,156.45/636,229.06 = 104,311.07/x
  3. Step 3: Cross multiply
    424,156.45x = 636,229.06 × 104,311.07
  4. Step 4: Simplify right side
    424,156.45x = 66,365,734,013.69
  5. Step 5: Solve for x
    x = 66,365,734,013.69/424,156.45
  6. Step 6: Final answer
    x = 156,465.22

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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.