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Finding the Fourth Proportional to 220,352.40, 330,492.96 and 87,194.88

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Solution

The fourth proportional to 220,352.40, 330,492.96 and 87,194.88 is: 130,778.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,352.40 : 330,492.96 = 87,194.88 : x
  2. Step 2: Convert to fraction form
    220,352.40/330,492.96 = 87,194.88/x
  3. Step 3: Cross multiply
    220,352.40x = 330,492.96 × 87,194.88
  4. Step 4: Simplify right side
    220,352.40x = 28,817,293,988.04
  5. Step 5: Solve for x
    x = 28,817,293,988.04/220,352.40
  6. Step 6: Final answer
    x = 130,778.22

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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.