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Finding the Fourth Proportional to 220,121.60, 330,182.40 and 185,129.60

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Solution

The fourth proportional to 220,121.60, 330,182.40 and 185,129.60 is: 277,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,121.60 : 330,182.40 = 185,129.60 : x
  2. Step 2: Convert to fraction form
    220,121.60/330,182.40 = 185,129.60/x
  3. Step 3: Cross multiply
    220,121.60x = 330,182.40 × 185,129.60
  4. Step 4: Simplify right side
    220,121.60x = 61,126,535,639.04
  5. Step 5: Solve for x
    x = 61,126,535,639.04/220,121.60
  6. Step 6: Final answer
    x = 277,694.40

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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.