Home / 242,921.53-335,141.35-140,889.78

Finding the Fourth Proportional to 242,921.53, 335,141.35 and 140,889.78

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Solution

The fourth proportional to 242,921.53, 335,141.35 and 140,889.78 is: 194,375.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,921.53 : 335,141.35 = 140,889.78 : x
  2. Step 2: Convert to fraction form
    242,921.53/335,141.35 = 140,889.78/x
  3. Step 3: Cross multiply
    242,921.53x = 335,141.35 × 140,889.78
  4. Step 4: Simplify right side
    242,921.53x = 47,217,990,718.18
  5. Step 5: Solve for x
    x = 47,217,990,718.18/242,921.53
  6. Step 6: Final answer
    x = 194,375.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.