Home / 391,581.15-540,260.62-219,475.26

Finding the Fourth Proportional to 391,581.15, 540,260.62 and 219,475.26

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Solution

The fourth proportional to 391,581.15, 540,260.62 and 219,475.26 is: 302,807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,581.15 : 540,260.62 = 219,475.26 : x
  2. Step 2: Convert to fraction form
    391,581.15/540,260.62 = 219,475.26/x
  3. Step 3: Cross multiply
    391,581.15x = 540,260.62 × 219,475.26
  4. Step 4: Simplify right side
    391,581.15x = 118,573,840,042.26
  5. Step 5: Solve for x
    x = 118,573,840,042.26/391,581.15
  6. Step 6: Final answer
    x = 302,807.83

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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.