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Finding the Fourth Proportional to 153,943.20, 230,914.80 and 151,318.80

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Solution

The fourth proportional to 153,943.20, 230,914.80 and 151,318.80 is: 226,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,943.20 : 230,914.80 = 151,318.80 : x
  2. Step 2: Convert to fraction form
    153,943.20/230,914.80 = 151,318.80/x
  3. Step 3: Cross multiply
    153,943.20x = 230,914.80 × 151,318.80
  4. Step 4: Simplify right side
    153,943.20x = 34,941,750,438.24
  5. Step 5: Solve for x
    x = 34,941,750,438.24/153,943.20
  6. Step 6: Final answer
    x = 226,978.20

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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.