Home / 278,833.50-418,015.08-120,943.02

Finding the Fourth Proportional to 278,833.50, 418,015.08 and 120,943.02

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Solution

The fourth proportional to 278,833.50, 418,015.08 and 120,943.02 is: 181,312.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,833.50 : 418,015.08 = 120,943.02 : x
  2. Step 2: Convert to fraction form
    278,833.50/418,015.08 = 120,943.02/x
  3. Step 3: Cross multiply
    278,833.50x = 418,015.08 × 120,943.02
  4. Step 4: Simplify right side
    278,833.50x = 50,556,006,180.74
  5. Step 5: Solve for x
    x = 50,556,006,180.74/278,833.50
  6. Step 6: Final answer
    x = 181,312.53

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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.