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Finding the Fourth Proportional to 154,099.40, 231,149.10 and 43,291.40

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Solution

The fourth proportional to 154,099.40, 231,149.10 and 43,291.40 is: 64,937.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,099.40 : 231,149.10 = 43,291.40 : x
  2. Step 2: Convert to fraction form
    154,099.40/231,149.10 = 43,291.40/x
  3. Step 3: Cross multiply
    154,099.40x = 231,149.10 × 43,291.40
  4. Step 4: Simplify right side
    154,099.40x = 10,006,768,147.74
  5. Step 5: Solve for x
    x = 10,006,768,147.74/154,099.40
  6. Step 6: Final answer
    x = 64,937.10

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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.