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Finding the Fourth Proportional to 153,279.61, 231,359.09 and 153,279.61

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Solution

The fourth proportional to 153,279.61, 231,359.09 and 153,279.61 is: 231,359.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,279.61 : 231,359.09 = 153,279.61 : x
  2. Step 2: Convert to fraction form
    153,279.61/231,359.09 = 153,279.61/x
  3. Step 3: Cross multiply
    153,279.61x = 231,359.09 × 153,279.61
  4. Step 4: Simplify right side
    153,279.61x = 35,462,629,740.36
  5. Step 5: Solve for x
    x = 35,462,629,740.36/153,279.61
  6. Step 6: Final answer
    x = 231,359.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.