Home / 410,129.20-615,389.82-223,140.52

Finding the Fourth Proportional to 410,129.20, 615,389.82 and 223,140.52

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Solution

The fourth proportional to 410,129.20, 615,389.82 and 223,140.52 is: 334,817.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,129.20 : 615,389.82 = 223,140.52 : x
  2. Step 2: Convert to fraction form
    410,129.20/615,389.82 = 223,140.52/x
  3. Step 3: Cross multiply
    410,129.20x = 615,389.82 × 223,140.52
  4. Step 4: Simplify right side
    410,129.20x = 137,318,404,437.51
  5. Step 5: Solve for x
    x = 137,318,404,437.51/410,129.20
  6. Step 6: Final answer
    x = 334,817.43

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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.