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Finding the Fourth Proportional to 153,504.20, 230,040.30 and 121,968.20

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Solution

The fourth proportional to 153,504.20, 230,040.30 and 121,968.20 is: 182,780.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,504.20 : 230,040.30 = 121,968.20 : x
  2. Step 2: Convert to fraction form
    153,504.20/230,040.30 = 121,968.20/x
  3. Step 3: Cross multiply
    153,504.20x = 230,040.30 × 121,968.20
  4. Step 4: Simplify right side
    153,504.20x = 28,057,601,318.46
  5. Step 5: Solve for x
    x = 28,057,601,318.46/153,504.20
  6. Step 6: Final answer
    x = 182,780.68

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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.