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Finding the Fourth Proportional to 222,253.60, 306,710.95 and 120,279.08

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Solution

The fourth proportional to 222,253.60, 306,710.95 and 120,279.08 is: 165,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,253.60 : 306,710.95 = 120,279.08 : x
  2. Step 2: Convert to fraction form
    222,253.60/306,710.95 = 120,279.08/x
  3. Step 3: Cross multiply
    222,253.60x = 306,710.95 × 120,279.08
  4. Step 4: Simplify right side
    222,253.60x = 36,890,909,974.80
  5. Step 5: Solve for x
    x = 36,890,909,974.80/222,253.60
  6. Step 6: Final answer
    x = 165,985.66

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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.