Home / 227,431.10-340,490.55-138,857.60

Finding the Fourth Proportional to 227,431.10, 340,490.55 and 138,857.60

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Solution

The fourth proportional to 227,431.10, 340,490.55 and 138,857.60 is: 207,885.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,431.10 : 340,490.55 = 138,857.60 : x
  2. Step 2: Convert to fraction form
    227,431.10/340,490.55 = 138,857.60/x
  3. Step 3: Cross multiply
    227,431.10x = 340,490.55 × 138,857.60
  4. Step 4: Simplify right side
    227,431.10x = 47,279,700,595.68
  5. Step 5: Solve for x
    x = 47,279,700,595.68/227,431.10
  6. Step 6: Final answer
    x = 207,885.82

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1.5x scale

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.