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Finding the Fourth Proportional to 218,122.52, 301,016.39 and 136,495.17

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Solution

The fourth proportional to 218,122.52, 301,016.39 and 136,495.17 is: 188,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,122.52 : 301,016.39 = 136,495.17 : x
  2. Step 2: Convert to fraction form
    218,122.52/301,016.39 = 136,495.17/x
  3. Step 3: Cross multiply
    218,122.52x = 301,016.39 × 136,495.17
  4. Step 4: Simplify right side
    218,122.52x = 41,087,282,643.36
  5. Step 5: Solve for x
    x = 41,087,282,643.36/218,122.52
  6. Step 6: Final answer
    x = 188,367.91

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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.