Home / 278,011.89-383,656.82-150,687.45

Finding the Fourth Proportional to 278,011.89, 383,656.82 and 150,687.45

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Solution

The fourth proportional to 278,011.89, 383,656.82 and 150,687.45 is: 207,948.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,011.89 : 383,656.82 = 150,687.45 : x
  2. Step 2: Convert to fraction form
    278,011.89/383,656.82 = 150,687.45/x
  3. Step 3: Cross multiply
    278,011.89x = 383,656.82 × 150,687.45
  4. Step 4: Simplify right side
    278,011.89x = 57,812,267,127.47
  5. Step 5: Solve for x
    x = 57,812,267,127.47/278,011.89
  6. Step 6: Final answer
    x = 207,948.90

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1.5x scale

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.