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Finding the Fourth Proportional to 218,186.67, 301,095.72 and 122,691.33

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Solution

The fourth proportional to 218,186.67, 301,095.72 and 122,691.33 is: 169,312.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,186.67 : 301,095.72 = 122,691.33 : x
  2. Step 2: Convert to fraction form
    218,186.67/301,095.72 = 122,691.33/x
  3. Step 3: Cross multiply
    218,186.67x = 301,095.72 × 122,691.33
  4. Step 4: Simplify right side
    218,186.67x = 36,941,834,344.11
  5. Step 5: Solve for x
    x = 36,941,834,344.11/218,186.67
  6. Step 6: Final answer
    x = 169,312.98

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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.