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Finding the Fourth Proportional to 636,604.80, 954,904.02 and 156,831.66

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Solution

The fourth proportional to 636,604.80, 954,904.02 and 156,831.66 is: 235,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,604.80 : 954,904.02 = 156,831.66 : x
  2. Step 2: Convert to fraction form
    636,604.80/954,904.02 = 156,831.66/x
  3. Step 3: Cross multiply
    636,604.80x = 954,904.02 × 156,831.66
  4. Step 4: Simplify right side
    636,604.80x = 149,759,182,597.27
  5. Step 5: Solve for x
    x = 149,759,182,597.27/636,604.80
  6. Step 6: Final answer
    x = 235,246.71

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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.