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Finding the Fourth Proportional to 177,539.40, 266,460.30 and 72,433.80

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Solution

The fourth proportional to 177,539.40, 266,460.30 and 72,433.80 is: 108,712.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,539.40 : 266,460.30 = 72,433.80 : x
  2. Step 2: Convert to fraction form
    177,539.40/266,460.30 = 72,433.80/x
  3. Step 3: Cross multiply
    177,539.40x = 266,460.30 × 72,433.80
  4. Step 4: Simplify right side
    177,539.40x = 19,300,732,078.14
  5. Step 5: Solve for x
    x = 19,300,732,078.14/177,539.40
  6. Step 6: Final answer
    x = 108,712.39

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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.