Home / 371,428.12-557,412.72-134,789.86

Finding the Fourth Proportional to 371,428.12, 557,412.72 and 134,789.86

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Solution

The fourth proportional to 371,428.12, 557,412.72 and 134,789.86 is: 202,282.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,428.12 : 557,412.72 = 134,789.86 : x
  2. Step 2: Convert to fraction form
    371,428.12/557,412.72 = 134,789.86/x
  3. Step 3: Cross multiply
    371,428.12x = 557,412.72 × 134,789.86
  4. Step 4: Simplify right side
    371,428.12x = 75,133,582,491.02
  5. Step 5: Solve for x
    x = 75,133,582,491.02/371,428.12
  6. Step 6: Final answer
    x = 202,282.97

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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.