Home / 385,417.38-578,096.91-119,179.56

Finding the Fourth Proportional to 385,417.38, 578,096.91 and 119,179.56

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Solution

The fourth proportional to 385,417.38, 578,096.91 and 119,179.56 is: 178,760.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,417.38 : 578,096.91 = 119,179.56 : x
  2. Step 2: Convert to fraction form
    385,417.38/578,096.91 = 119,179.56/x
  3. Step 3: Cross multiply
    385,417.38x = 578,096.91 × 119,179.56
  4. Step 4: Simplify right side
    385,417.38x = 68,897,335,371.16
  5. Step 5: Solve for x
    x = 68,897,335,371.16/385,417.38
  6. Step 6: Final answer
    x = 178,760.32

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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.