Home / 283,602.06-391,379.22-156,285.90

Finding the Fourth Proportional to 283,602.06, 391,379.22 and 156,285.90

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Solution

The fourth proportional to 283,602.06, 391,379.22 and 156,285.90 is: 215,679.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,602.06 : 391,379.22 = 156,285.90 : x
  2. Step 2: Convert to fraction form
    283,602.06/391,379.22 = 156,285.90/x
  3. Step 3: Cross multiply
    283,602.06x = 391,379.22 × 156,285.90
  4. Step 4: Simplify right side
    283,602.06x = 61,167,053,639.00
  5. Step 5: Solve for x
    x = 61,167,053,639.00/283,602.06
  6. Step 6: Final answer
    x = 215,679.16

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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.