Home / 291,619.13-402,438.80-162,554

Finding the Fourth Proportional to 291,619.13, 402,438.80 and 162,554

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Solution

The fourth proportional to 291,619.13, 402,438.80 and 162,554 is: 224,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,619.13 : 402,438.80 = 162,554 : x
  2. Step 2: Convert to fraction form
    291,619.13/402,438.80 = 162,554/x
  3. Step 3: Cross multiply
    291,619.13x = 402,438.80 × 162,554
  4. Step 4: Simplify right side
    291,619.13x = 65,418,035,882.43
  5. Step 5: Solve for x
    x = 65,418,035,882.43/291,619.13
  6. Step 6: Final answer
    x = 224,326.97

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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.