Home / 386,320.56-579,431.61-149,501.22

Finding the Fourth Proportional to 386,320.56, 579,431.61 and 149,501.22

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Solution

The fourth proportional to 386,320.56, 579,431.61 and 149,501.22 is: 224,232.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,320.56 : 579,431.61 = 149,501.22 : x
  2. Step 2: Convert to fraction form
    386,320.56/579,431.61 = 149,501.22/x
  3. Step 3: Cross multiply
    386,320.56x = 579,431.61 × 149,501.22
  4. Step 4: Simplify right side
    386,320.56x = 86,625,732,601.56
  5. Step 5: Solve for x
    x = 86,625,732,601.56/386,320.56
  6. Step 6: Final answer
    x = 224,232.78

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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.