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Finding the Fourth Proportional to 153,821.80, 230,732.70 and 147,130.60

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Solution

The fourth proportional to 153,821.80, 230,732.70 and 147,130.60 is: 220,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,821.80 : 230,732.70 = 147,130.60 : x
  2. Step 2: Convert to fraction form
    153,821.80/230,732.70 = 147,130.60/x
  3. Step 3: Cross multiply
    153,821.80x = 230,732.70 × 147,130.60
  4. Step 4: Simplify right side
    153,821.80x = 33,947,840,590.62
  5. Step 5: Solve for x
    x = 33,947,840,590.62/153,821.80
  6. Step 6: Final answer
    x = 220,695.90

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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.