Home / 278,869.28-384,823.80-151,544

Finding the Fourth Proportional to 278,869.28, 384,823.80 and 151,544

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Solution

The fourth proportional to 278,869.28, 384,823.80 and 151,544 is: 209,122.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,869.28 : 384,823.80 = 151,544 : x
  2. Step 2: Convert to fraction form
    278,869.28/384,823.80 = 151,544/x
  3. Step 3: Cross multiply
    278,869.28x = 384,823.80 × 151,544
  4. Step 4: Simplify right side
    278,869.28x = 58,317,737,947.20
  5. Step 5: Solve for x
    x = 58,317,737,947.20/278,869.28
  6. Step 6: Final answer
    x = 209,122.13

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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.