Home / 206,414.30-284,588.06-133,688.72

Finding the Fourth Proportional to 206,414.30, 284,588.06 and 133,688.72

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Solution

The fourth proportional to 206,414.30, 284,588.06 and 133,688.72 is: 184,319.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,414.30 : 284,588.06 = 133,688.72 : x
  2. Step 2: Convert to fraction form
    206,414.30/284,588.06 = 133,688.72/x
  3. Step 3: Cross multiply
    206,414.30x = 284,588.06 × 133,688.72
  4. Step 4: Simplify right side
    206,414.30x = 38,046,211,377.30
  5. Step 5: Solve for x
    x = 38,046,211,377.30/206,414.30
  6. Step 6: Final answer
    x = 184,319.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.