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Finding the Fourth Proportional to 222,772.60, 334,191.30 and 72,987.40

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Solution

The fourth proportional to 222,772.60, 334,191.30 and 72,987.40 is: 109,491.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,772.60 : 334,191.30 = 72,987.40 : x
  2. Step 2: Convert to fraction form
    222,772.60/334,191.30 = 72,987.40/x
  3. Step 3: Cross multiply
    222,772.60x = 334,191.30 × 72,987.40
  4. Step 4: Simplify right side
    222,772.60x = 24,391,754,089.62
  5. Step 5: Solve for x
    x = 24,391,754,089.62/222,772.60
  6. Step 6: Final answer
    x = 109,491.72

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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.