Home / 210,248.62-290,293.28-129,785.38

Finding the Fourth Proportional to 210,248.62, 290,293.28 and 129,785.38

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Solution

The fourth proportional to 210,248.62, 290,293.28 and 129,785.38 is: 179,196.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,248.62 : 290,293.28 = 129,785.38 : x
  2. Step 2: Convert to fraction form
    210,248.62/290,293.28 = 129,785.38/x
  3. Step 3: Cross multiply
    210,248.62x = 290,293.28 × 129,785.38
  4. Step 4: Simplify right side
    210,248.62x = 37,675,823,656.25
  5. Step 5: Solve for x
    x = 37,675,823,656.25/210,248.62
  6. Step 6: Final answer
    x = 179,196.53

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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.