Home / 256,211.10-384,316.65-252,711.90

Finding the Fourth Proportional to 256,211.10, 384,316.65 and 252,711.90

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Solution

The fourth proportional to 256,211.10, 384,316.65 and 252,711.90 is: 379,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,211.10 : 384,316.65 = 252,711.90 : x
  2. Step 2: Convert to fraction form
    256,211.10/384,316.65 = 252,711.90/x
  3. Step 3: Cross multiply
    256,211.10x = 384,316.65 × 252,711.90
  4. Step 4: Simplify right side
    256,211.10x = 97,121,390,823.14
  5. Step 5: Solve for x
    x = 97,121,390,823.14/256,211.10
  6. Step 6: Final answer
    x = 379,067.85

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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.