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Finding the Fourth Proportional to 177,888.72, 266,831.48 and 72,633.80

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Solution

The fourth proportional to 177,888.72, 266,831.48 and 72,633.80 is: 108,950.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,888.72 : 266,831.48 = 72,633.80 : x
  2. Step 2: Convert to fraction form
    177,888.72/266,831.48 = 72,633.80/x
  3. Step 3: Cross multiply
    177,888.72x = 266,831.48 × 72,633.80
  4. Step 4: Simplify right side
    177,888.72x = 19,380,984,352.02
  5. Step 5: Solve for x
    x = 19,380,984,352.02/177,888.72
  6. Step 6: Final answer
    x = 108,950.05

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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.