Home / 210,542.43-290,549.30-115,049.12

Finding the Fourth Proportional to 210,542.43, 290,549.30 and 115,049.12

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Solution

The fourth proportional to 210,542.43, 290,549.30 and 115,049.12 is: 158,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,542.43 : 290,549.30 = 115,049.12 : x
  2. Step 2: Convert to fraction form
    210,542.43/290,549.30 = 115,049.12/x
  3. Step 3: Cross multiply
    210,542.43x = 290,549.30 × 115,049.12
  4. Step 4: Simplify right side
    210,542.43x = 33,427,442,565.26
  5. Step 5: Solve for x
    x = 33,427,442,565.26/210,542.43
  6. Step 6: Final answer
    x = 158,768.20

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1.5x scale

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.