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Finding the Fourth Proportional to 240,112.30, 359,918.16 and 90,249.34

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Solution

The fourth proportional to 240,112.30, 359,918.16 and 90,249.34 is: 135,279.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,112.30 : 359,918.16 = 90,249.34 : x
  2. Step 2: Convert to fraction form
    240,112.30/359,918.16 = 90,249.34/x
  3. Step 3: Cross multiply
    240,112.30x = 359,918.16 × 90,249.34
  4. Step 4: Simplify right side
    240,112.30x = 32,482,376,394.01
  5. Step 5: Solve for x
    x = 32,482,376,394.01/240,112.30
  6. Step 6: Final answer
    x = 135,279.94

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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.