Home / 206,258.18-309,387.51-56,499.76

Finding the Fourth Proportional to 206,258.18, 309,387.51 and 56,499.76

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Solution

The fourth proportional to 206,258.18, 309,387.51 and 56,499.76 is: 84,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,258.18 : 309,387.51 = 56,499.76 : x
  2. Step 2: Convert to fraction form
    206,258.18/309,387.51 = 56,499.76/x
  3. Step 3: Cross multiply
    206,258.18x = 309,387.51 × 56,499.76
  4. Step 4: Simplify right side
    206,258.18x = 17,480,318,232.56
  5. Step 5: Solve for x
    x = 17,480,318,232.56/206,258.18
  6. Step 6: Final answer
    x = 84,749.70

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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.