Home / 238,499.40-357,727.08-80,709.72

Finding the Fourth Proportional to 238,499.40, 357,727.08 and 80,709.72

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Solution

The fourth proportional to 238,499.40, 357,727.08 and 80,709.72 is: 121,057.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,499.40 : 357,727.08 = 80,709.72 : x
  2. Step 2: Convert to fraction form
    238,499.40/357,727.08 = 80,709.72/x
  3. Step 3: Cross multiply
    238,499.40x = 357,727.08 × 80,709.72
  4. Step 4: Simplify right side
    238,499.40x = 28,872,052,463.22
  5. Step 5: Solve for x
    x = 28,872,052,463.22/238,499.40
  6. Step 6: Final answer
    x = 121,057.13

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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.