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Finding the Fourth Proportional to 424,610.30, 636,956.46 and 154,811.05

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Solution

The fourth proportional to 424,610.30, 636,956.46 and 154,811.05 is: 232,231.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,610.30 : 636,956.46 = 154,811.05 : x
  2. Step 2: Convert to fraction form
    424,610.30/636,956.46 = 154,811.05/x
  3. Step 3: Cross multiply
    424,610.30x = 636,956.46 × 154,811.05
  4. Step 4: Simplify right side
    424,610.30x = 98,607,896,784.49
  5. Step 5: Solve for x
    x = 98,607,896,784.49/424,610.30
  6. Step 6: Final answer
    x = 232,231.52

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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.