Home / 278,450.51-384,251.96-151,123.55

Finding the Fourth Proportional to 278,450.51, 384,251.96 and 151,123.55

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Solution

The fourth proportional to 278,450.51, 384,251.96 and 151,123.55 is: 208,545.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,450.51 : 384,251.96 = 151,123.55 : x
  2. Step 2: Convert to fraction form
    278,450.51/384,251.96 = 151,123.55/x
  3. Step 3: Cross multiply
    278,450.51x = 384,251.96 × 151,123.55
  4. Step 4: Simplify right side
    278,450.51x = 58,069,519,534.04
  5. Step 5: Solve for x
    x = 58,069,519,534.04/278,450.51
  6. Step 6: Final answer
    x = 208,545.21

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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.