Home / 372,905.60-559,358.40-215,004.20

Finding the Fourth Proportional to 372,905.60, 559,358.40 and 215,004.20

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Solution

The fourth proportional to 372,905.60, 559,358.40 and 215,004.20 is: 322,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,905.60 : 559,358.40 = 215,004.20 : x
  2. Step 2: Convert to fraction form
    372,905.60/559,358.40 = 215,004.20/x
  3. Step 3: Cross multiply
    372,905.60x = 559,358.40 × 215,004.20
  4. Step 4: Simplify right side
    372,905.60x = 120,264,405,305.28
  5. Step 5: Solve for x
    x = 120,264,405,305.28/372,905.60
  6. Step 6: Final answer
    x = 322,506.30

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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.