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Finding the Fourth Proportional to 144,219.66, 216,164.25 and 55,427.46

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Solution

The fourth proportional to 144,219.66, 216,164.25 and 55,427.46 is: 83,077.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,219.66 : 216,164.25 = 55,427.46 : x
  2. Step 2: Convert to fraction form
    144,219.66/216,164.25 = 55,427.46/x
  3. Step 3: Cross multiply
    144,219.66x = 216,164.25 × 55,427.46
  4. Step 4: Simplify right side
    144,219.66x = 11,981,435,320.31
  5. Step 5: Solve for x
    x = 11,981,435,320.31/144,219.66
  6. Step 6: Final answer
    x = 83,077.68

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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.