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Finding the Fourth Proportional to 178,217.70, 267,242.85 and 103,359.12

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Solution

The fourth proportional to 178,217.70, 267,242.85 and 103,359.12 is: 154,990.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,217.70 : 267,242.85 = 103,359.12 : x
  2. Step 2: Convert to fraction form
    178,217.70/267,242.85 = 103,359.12/x
  3. Step 3: Cross multiply
    178,217.70x = 267,242.85 × 103,359.12
  4. Step 4: Simplify right side
    178,217.70x = 27,621,985,802.29
  5. Step 5: Solve for x
    x = 27,621,985,802.29/178,217.70
  6. Step 6: Final answer
    x = 154,990.14

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1.5x scale

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.