Home / 217,248.45-299,815.19-121,761.30

Finding the Fourth Proportional to 217,248.45, 299,815.19 and 121,761.30

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Solution

The fourth proportional to 217,248.45, 299,815.19 and 121,761.30 is: 168,037.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,248.45 : 299,815.19 = 121,761.30 : x
  2. Step 2: Convert to fraction form
    217,248.45/299,815.19 = 121,761.30/x
  3. Step 3: Cross multiply
    217,248.45x = 299,815.19 × 121,761.30
  4. Step 4: Simplify right side
    217,248.45x = 36,505,887,294.15
  5. Step 5: Solve for x
    x = 36,505,887,294.15/217,248.45
  6. Step 6: Final answer
    x = 168,037.50

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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.