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Finding the Fourth Proportional to 283,476.62, 391,200.36 and 156,152.72

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Solution

The fourth proportional to 283,476.62, 391,200.36 and 156,152.72 is: 215,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,476.62 : 391,200.36 = 156,152.72 : x
  2. Step 2: Convert to fraction form
    283,476.62/391,200.36 = 156,152.72/x
  3. Step 3: Cross multiply
    283,476.62x = 391,200.36 × 156,152.72
  4. Step 4: Simplify right side
    283,476.62x = 61,087,000,278.98
  5. Step 5: Solve for x
    x = 61,087,000,278.98/283,476.62
  6. Step 6: Final answer
    x = 215,492.20

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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.