Home / 386,280.64-579,086.12-149,460.40

Finding the Fourth Proportional to 386,280.64, 579,086.12 and 149,460.40

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Solution

The fourth proportional to 386,280.64, 579,086.12 and 149,460.40 is: 224,061.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,280.64 : 579,086.12 = 149,460.40 : x
  2. Step 2: Convert to fraction form
    386,280.64/579,086.12 = 149,460.40/x
  3. Step 3: Cross multiply
    386,280.64x = 579,086.12 × 149,460.40
  4. Step 4: Simplify right side
    386,280.64x = 86,550,443,129.65
  5. Step 5: Solve for x
    x = 86,550,443,129.65/386,280.64
  6. Step 6: Final answer
    x = 224,061.04

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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.