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Finding the Fourth Proportional to 223,419.76, 335,368.34 and 90,386.96

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Solution

The fourth proportional to 223,419.76, 335,368.34 and 90,386.96 is: 135,677.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,419.76 : 335,368.34 = 90,386.96 : x
  2. Step 2: Convert to fraction form
    223,419.76/335,368.34 = 90,386.96/x
  3. Step 3: Cross multiply
    223,419.76x = 335,368.34 × 90,386.96
  4. Step 4: Simplify right side
    223,419.76x = 30,312,924,732.85
  5. Step 5: Solve for x
    x = 30,312,924,732.85/223,419.76
  6. Step 6: Final answer
    x = 135,677.01

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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.