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Finding the Fourth Proportional to 177,983.87, 266,968.87 and 65,615.47

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Solution

The fourth proportional to 177,983.87, 266,968.87 and 65,615.47 is: 98,420.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,983.87 : 266,968.87 = 65,615.47 : x
  2. Step 2: Convert to fraction form
    177,983.87/266,968.87 = 65,615.47/x
  3. Step 3: Cross multiply
    177,983.87x = 266,968.87 × 65,615.47
  4. Step 4: Simplify right side
    177,983.87x = 17,517,287,880.42
  5. Step 5: Solve for x
    x = 17,517,287,880.42/177,983.87
  6. Step 6: Final answer
    x = 98,420.65

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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.