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Finding the Fourth Proportional to 220,125.60, 330,064.44 and 70,330.80

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Solution

The fourth proportional to 220,125.60, 330,064.44 and 70,330.80 is: 105,456.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,125.60 : 330,064.44 = 70,330.80 : x
  2. Step 2: Convert to fraction form
    220,125.60/330,064.44 = 70,330.80/x
  3. Step 3: Cross multiply
    220,125.60x = 330,064.44 × 70,330.80
  4. Step 4: Simplify right side
    220,125.60x = 23,213,696,116.75
  5. Step 5: Solve for x
    x = 23,213,696,116.75/220,125.60
  6. Step 6: Final answer
    x = 105,456.59

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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.