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Finding the Fourth Proportional to 342,002.76, 471,962.80 and 191,099.88

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Solution

The fourth proportional to 342,002.76, 471,962.80 and 191,099.88 is: 263,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,002.76 : 471,962.80 = 191,099.88 : x
  2. Step 2: Convert to fraction form
    342,002.76/471,962.80 = 191,099.88/x
  3. Step 3: Cross multiply
    342,002.76x = 471,962.80 × 191,099.88
  4. Step 4: Simplify right side
    342,002.76x = 90,192,034,444.46
  5. Step 5: Solve for x
    x = 90,192,034,444.46/342,002.76
  6. Step 6: Final answer
    x = 263,717.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.