Home / 278,844.32-384,773.93-157,959.72

Finding the Fourth Proportional to 278,844.32, 384,773.93 and 157,959.72

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Solution

The fourth proportional to 278,844.32, 384,773.93 and 157,959.72 is: 217,966.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,844.32 : 384,773.93 = 157,959.72 : x
  2. Step 2: Convert to fraction form
    278,844.32/384,773.93 = 157,959.72/x
  3. Step 3: Cross multiply
    278,844.32x = 384,773.93 × 157,959.72
  4. Step 4: Simplify right side
    278,844.32x = 60,778,782,715.04
  5. Step 5: Solve for x
    x = 60,778,782,715.04/278,844.32
  6. Step 6: Final answer
    x = 217,966.72

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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.