Home / 419,938.20-629,534.29-163,711.71

Finding the Fourth Proportional to 419,938.20, 629,534.29 and 163,711.71

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Solution

The fourth proportional to 419,938.20, 629,534.29 and 163,711.71 is: 245,422.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,938.20 : 629,534.29 = 163,711.71 : x
  2. Step 2: Convert to fraction form
    419,938.20/629,534.29 = 163,711.71/x
  3. Step 3: Cross multiply
    419,938.20x = 629,534.29 × 163,711.71
  4. Step 4: Simplify right side
    419,938.20x = 103,062,133,750.34
  5. Step 5: Solve for x
    x = 103,062,133,750.34/419,938.20
  6. Step 6: Final answer
    x = 245,422.15

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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.