Home / 270,227.28-405,398.88-80,702.58

Finding the Fourth Proportional to 270,227.28, 405,398.88 and 80,702.58

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Solution

The fourth proportional to 270,227.28, 405,398.88 and 80,702.58 is: 121,071.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,227.28 : 405,398.88 = 80,702.58 : x
  2. Step 2: Convert to fraction form
    270,227.28/405,398.88 = 80,702.58/x
  3. Step 3: Cross multiply
    270,227.28x = 405,398.88 × 80,702.58
  4. Step 4: Simplify right side
    270,227.28x = 32,716,735,545.11
  5. Step 5: Solve for x
    x = 32,716,735,545.11/270,227.28
  6. Step 6: Final answer
    x = 121,071.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.