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Finding the Fourth Proportional to 239,908.34, 359,648.66 and 121,518.74

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Solution

The fourth proportional to 239,908.34, 359,648.66 and 121,518.74 is: 182,169.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,908.34 : 359,648.66 = 121,518.74 : x
  2. Step 2: Convert to fraction form
    239,908.34/359,648.66 = 121,518.74/x
  3. Step 3: Cross multiply
    239,908.34x = 359,648.66 × 121,518.74
  4. Step 4: Simplify right side
    239,908.34x = 43,704,049,600.05
  5. Step 5: Solve for x
    x = 43,704,049,600.05/239,908.34
  6. Step 6: Final answer
    x = 182,169.78

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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.