Home / 278,862.50-384,819.72-151,535.36

Finding the Fourth Proportional to 278,862.50, 384,819.72 and 151,535.36

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Solution

The fourth proportional to 278,862.50, 384,819.72 and 151,535.36 is: 209,113.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,862.50 : 384,819.72 = 151,535.36 : x
  2. Step 2: Convert to fraction form
    278,862.50/384,819.72 = 151,535.36/x
  3. Step 3: Cross multiply
    278,862.50x = 384,819.72 × 151,535.36
  4. Step 4: Simplify right side
    278,862.50x = 58,313,794,805.30
  5. Step 5: Solve for x
    x = 58,313,794,805.30/278,862.50
  6. Step 6: Final answer
    x = 209,113.07

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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.