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Finding the Fourth Proportional to 220,625.04, 330,646.76 and 87,432.63

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Solution

The fourth proportional to 220,625.04, 330,646.76 and 87,432.63 is: 131,033.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,625.04 : 330,646.76 = 87,432.63 : x
  2. Step 2: Convert to fraction form
    220,625.04/330,646.76 = 87,432.63/x
  3. Step 3: Cross multiply
    220,625.04x = 330,646.76 × 87,432.63
  4. Step 4: Simplify right side
    220,625.04x = 28,909,314,478.56
  5. Step 5: Solve for x
    x = 28,909,314,478.56/220,625.04
  6. Step 6: Final answer
    x = 131,033.69

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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.