Home / 283,543.91-391,290.38-156,219.50

Finding the Fourth Proportional to 283,543.91, 391,290.38 and 156,219.50

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Solution

The fourth proportional to 283,543.91, 391,290.38 and 156,219.50 is: 215,582.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,543.91 : 391,290.38 = 156,219.50 : x
  2. Step 2: Convert to fraction form
    283,543.91/391,290.38 = 156,219.50/x
  3. Step 3: Cross multiply
    283,543.91x = 391,290.38 × 156,219.50
  4. Step 4: Simplify right side
    283,543.91x = 61,127,186,248.20
  5. Step 5: Solve for x
    x = 61,127,186,248.20/283,543.91
  6. Step 6: Final answer
    x = 215,582.79

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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.