Home / 278,450.76-384,252.30-151,123.80

Finding the Fourth Proportional to 278,450.76, 384,252.30 and 151,123.80

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Solution

The fourth proportional to 278,450.76, 384,252.30 and 151,123.80 is: 208,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,450.76 : 384,252.30 = 151,123.80 : x
  2. Step 2: Convert to fraction form
    278,450.76/384,252.30 = 151,123.80/x
  3. Step 3: Cross multiply
    278,450.76x = 384,252.30 × 151,123.80
  4. Step 4: Simplify right side
    278,450.76x = 58,069,667,734.74
  5. Step 5: Solve for x
    x = 58,069,667,734.74/278,450.76
  6. Step 6: Final answer
    x = 208,545.55

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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.