Home / 420,157.31-579,824.96-229,177.53

Finding the Fourth Proportional to 420,157.31, 579,824.96 and 229,177.53

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Solution

The fourth proportional to 420,157.31, 579,824.96 and 229,177.53 is: 316,269.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,157.31 : 579,824.96 = 229,177.53 : x
  2. Step 2: Convert to fraction form
    420,157.31/579,824.96 = 229,177.53/x
  3. Step 3: Cross multiply
    420,157.31x = 579,824.96 × 229,177.53
  4. Step 4: Simplify right side
    420,157.31x = 132,882,851,019.26
  5. Step 5: Solve for x
    x = 132,882,851,019.26/420,157.31
  6. Step 6: Final answer
    x = 316,269.29

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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.