Home / 372,905.10-559,357.65-215,003.70

Finding the Fourth Proportional to 372,905.10, 559,357.65 and 215,003.70

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Solution

The fourth proportional to 372,905.10, 559,357.65 and 215,003.70 is: 322,505.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,905.10 : 559,357.65 = 215,003.70 : x
  2. Step 2: Convert to fraction form
    372,905.10/559,357.65 = 215,003.70/x
  3. Step 3: Cross multiply
    372,905.10x = 559,357.65 × 215,003.70
  4. Step 4: Simplify right side
    372,905.10x = 120,263,964,373.31
  5. Step 5: Solve for x
    x = 120,263,964,373.31/372,905.10
  6. Step 6: Final answer
    x = 322,505.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.