Home / 278,012.89-383,658.20-150,688.45

Finding the Fourth Proportional to 278,012.89, 383,658.20 and 150,688.45

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Solution

The fourth proportional to 278,012.89, 383,658.20 and 150,688.45 is: 207,950.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,012.89 : 383,658.20 = 150,688.45 : x
  2. Step 2: Convert to fraction form
    278,012.89/383,658.20 = 150,688.45/x
  3. Step 3: Cross multiply
    278,012.89x = 383,658.20 × 150,688.45
  4. Step 4: Simplify right side
    278,012.89x = 57,812,859,487.79
  5. Step 5: Solve for x
    x = 57,812,859,487.79/278,012.89
  6. Step 6: Final answer
    x = 207,950.28

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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.