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Finding the Fourth Proportional to 424,573.65, 636,839.70 and 158,313.39

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Solution

The fourth proportional to 424,573.65, 636,839.70 and 158,313.39 is: 237,462.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,573.65 : 636,839.70 = 158,313.39 : x
  2. Step 2: Convert to fraction form
    424,573.65/636,839.70 = 158,313.39/x
  3. Step 3: Cross multiply
    424,573.65x = 636,839.70 × 158,313.39
  4. Step 4: Simplify right side
    424,573.65x = 100,820,251,793.58
  5. Step 5: Solve for x
    x = 100,820,251,793.58/424,573.65
  6. Step 6: Final answer
    x = 237,462.34

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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.