Home / 437,721.60-656,072.10-201,088.20

Finding the Fourth Proportional to 437,721.60, 656,072.10 and 201,088.20

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Solution

The fourth proportional to 437,721.60, 656,072.10 and 201,088.20 is: 301,397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,721.60 : 656,072.10 = 201,088.20 : x
  2. Step 2: Convert to fraction form
    437,721.60/656,072.10 = 201,088.20/x
  3. Step 3: Cross multiply
    437,721.60x = 656,072.10 × 201,088.20
  4. Step 4: Simplify right side
    437,721.60x = 131,928,357,659.22
  5. Step 5: Solve for x
    x = 131,928,357,659.22/437,721.60
  6. Step 6: Final answer
    x = 301,397.87

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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.