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Finding the Fourth Proportional to 236,480.80, 354,721.20 and 147,834.40

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Solution

The fourth proportional to 236,480.80, 354,721.20 and 147,834.40 is: 221,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,480.80 : 354,721.20 = 147,834.40 : x
  2. Step 2: Convert to fraction form
    236,480.80/354,721.20 = 147,834.40/x
  3. Step 3: Cross multiply
    236,480.80x = 354,721.20 × 147,834.40
  4. Step 4: Simplify right side
    236,480.80x = 52,439,995,769.28
  5. Step 5: Solve for x
    x = 52,439,995,769.28/236,480.80
  6. Step 6: Final answer
    x = 221,751.60

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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.