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Finding the Fourth Proportional to 153,707.20, 230,560.80 and 136,211.20

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Solution

The fourth proportional to 153,707.20, 230,560.80 and 136,211.20 is: 204,316.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,707.20 : 230,560.80 = 136,211.20 : x
  2. Step 2: Convert to fraction form
    153,707.20/230,560.80 = 136,211.20/x
  3. Step 3: Cross multiply
    153,707.20x = 230,560.80 × 136,211.20
  4. Step 4: Simplify right side
    153,707.20x = 31,404,963,240.96
  5. Step 5: Solve for x
    x = 31,404,963,240.96/153,707.20
  6. Step 6: Final answer
    x = 204,316.80

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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.