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Finding the Fourth Proportional to 223,369.90, 335,117.40 and 90,343.60

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Solution

The fourth proportional to 223,369.90, 335,117.40 and 90,343.60 is: 135,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,369.90 : 335,117.40 = 90,343.60 : x
  2. Step 2: Convert to fraction form
    223,369.90/335,117.40 = 90,343.60/x
  3. Step 3: Cross multiply
    223,369.90x = 335,117.40 × 90,343.60
  4. Step 4: Simplify right side
    223,369.90x = 30,275,712,338.64
  5. Step 5: Solve for x
    x = 30,275,712,338.64/223,369.90
  6. Step 6: Final answer
    x = 135,540.70

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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.