Home / 340,278.82-510,418.20-103,621.52

Finding the Fourth Proportional to 340,278.82, 510,418.20 and 103,621.52

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Solution

The fourth proportional to 340,278.82, 510,418.20 and 103,621.52 is: 155,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,278.82 : 510,418.20 = 103,621.52 : x
  2. Step 2: Convert to fraction form
    340,278.82/510,418.20 = 103,621.52/x
  3. Step 3: Cross multiply
    340,278.82x = 510,418.20 × 103,621.52
  4. Step 4: Simplify right side
    340,278.82x = 52,890,309,719.66
  5. Step 5: Solve for x
    x = 52,890,309,719.66/340,278.82
  6. Step 6: Final answer
    x = 155,432.27

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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.