Home / 278,923.32-384,912.67-158,087.45

Finding the Fourth Proportional to 278,923.32, 384,912.67 and 158,087.45

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Solution

The fourth proportional to 278,923.32, 384,912.67 and 158,087.45 is: 218,159.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,923.32 : 384,912.67 = 158,087.45 : x
  2. Step 2: Convert to fraction form
    278,923.32/384,912.67 = 158,087.45/x
  3. Step 3: Cross multiply
    278,923.32x = 384,912.67 × 158,087.45
  4. Step 4: Simplify right side
    278,923.32x = 60,849,862,472.99
  5. Step 5: Solve for x
    x = 60,849,862,472.99/278,923.32
  6. Step 6: Final answer
    x = 218,159.82

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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.