Home / 340,403.55-510,550.65-103,691.18

Finding the Fourth Proportional to 340,403.55, 510,550.65 and 103,691.18

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Solution

The fourth proportional to 340,403.55, 510,550.65 and 103,691.18 is: 155,520.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,403.55 : 510,550.65 = 103,691.18 : x
  2. Step 2: Convert to fraction form
    340,403.55/510,550.65 = 103,691.18/x
  3. Step 3: Cross multiply
    340,403.55x = 510,550.65 × 103,691.18
  4. Step 4: Simplify right side
    340,403.55x = 52,939,599,348.27
  5. Step 5: Solve for x
    x = 52,939,599,348.27/340,403.55
  6. Step 6: Final answer
    x = 155,520.12

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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.