Home / 283,631.90-391,430.50-162,812.30

Finding the Fourth Proportional to 283,631.90, 391,430.50 and 162,812.30

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Solution

The fourth proportional to 283,631.90, 391,430.50 and 162,812.30 is: 224,691.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,631.90 : 391,430.50 = 162,812.30 : x
  2. Step 2: Convert to fraction form
    283,631.90/391,430.50 = 162,812.30/x
  3. Step 3: Cross multiply
    283,631.90x = 391,430.50 × 162,812.30
  4. Step 4: Simplify right side
    283,631.90x = 63,729,699,995.15
  5. Step 5: Solve for x
    x = 63,729,699,995.15/283,631.90
  6. Step 6: Final answer
    x = 224,691.58

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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.