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Finding the Fourth Proportional to 636,016.32, 954,009.52 and 156,243.38

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Solution

The fourth proportional to 636,016.32, 954,009.52 and 156,243.38 is: 234,361.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,016.32 : 954,009.52 = 156,243.38 : x
  2. Step 2: Convert to fraction form
    636,016.32/954,009.52 = 156,243.38/x
  3. Step 3: Cross multiply
    636,016.32x = 954,009.52 × 156,243.38
  4. Step 4: Simplify right side
    636,016.32x = 149,057,671,956.98
  5. Step 5: Solve for x
    x = 149,057,671,956.98/636,016.32
  6. Step 6: Final answer
    x = 234,361.39

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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.