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Finding the Fourth Proportional to 239,849.96, 359,709.26 and 90,078.66

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Solution

The fourth proportional to 239,849.96, 359,709.26 and 90,078.66 is: 135,093.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,849.96 : 359,709.26 = 90,078.66 : x
  2. Step 2: Convert to fraction form
    239,849.96/359,709.26 = 90,078.66/x
  3. Step 3: Cross multiply
    239,849.96x = 359,709.26 × 90,078.66
  4. Step 4: Simplify right side
    239,849.96x = 32,402,127,680.00
  5. Step 5: Solve for x
    x = 32,402,127,680.00/239,849.96
  6. Step 6: Final answer
    x = 135,093.32

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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.