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Finding the Fourth Proportional to 223,960, 335,937.96 and 90,808.60

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Solution

The fourth proportional to 223,960, 335,937.96 and 90,808.60 is: 136,212.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,960 : 335,937.96 = 90,808.60 : x
  2. Step 2: Convert to fraction form
    223,960/335,937.96 = 90,808.60/x
  3. Step 3: Cross multiply
    223,960x = 335,937.96 × 90,808.60
  4. Step 4: Simplify right side
    223,960x = 30,506,055,834.46
  5. Step 5: Solve for x
    x = 30,506,055,834.46/223,960
  6. Step 6: Final answer
    x = 136,212.07

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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.