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Finding the Fourth Proportional to 178,315.40, 267,473.10 and 79,819.40

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Solution

The fourth proportional to 178,315.40, 267,473.10 and 79,819.40 is: 119,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,315.40 : 267,473.10 = 79,819.40 : x
  2. Step 2: Convert to fraction form
    178,315.40/267,473.10 = 79,819.40/x
  3. Step 3: Cross multiply
    178,315.40x = 267,473.10 × 79,819.40
  4. Step 4: Simplify right side
    178,315.40x = 21,349,542,358.14
  5. Step 5: Solve for x
    x = 21,349,542,358.14/178,315.40
  6. Step 6: Final answer
    x = 119,729.10

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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.