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Finding the Fourth Proportional to 153,324.60, 229,986.90 and 115,999.80

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Solution

The fourth proportional to 153,324.60, 229,986.90 and 115,999.80 is: 173,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,324.60 : 229,986.90 = 115,999.80 : x
  2. Step 2: Convert to fraction form
    153,324.60/229,986.90 = 115,999.80/x
  3. Step 3: Cross multiply
    153,324.60x = 229,986.90 × 115,999.80
  4. Step 4: Simplify right side
    153,324.60x = 26,678,434,402.62
  5. Step 5: Solve for x
    x = 26,678,434,402.62/153,324.60
  6. Step 6: Final answer
    x = 173,999.70

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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.