Home / 257,947.94-386,946.52-100,188.70

Finding the Fourth Proportional to 257,947.94, 386,946.52 and 100,188.70

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Solution

The fourth proportional to 257,947.94, 386,946.52 and 100,188.70 is: 150,292.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,947.94 : 386,946.52 = 100,188.70 : x
  2. Step 2: Convert to fraction form
    257,947.94/386,946.52 = 100,188.70/x
  3. Step 3: Cross multiply
    257,947.94x = 386,946.52 × 100,188.70
  4. Step 4: Simplify right side
    257,947.94x = 38,767,667,590.49
  5. Step 5: Solve for x
    x = 38,767,667,590.49/257,947.94
  6. Step 6: Final answer
    x = 150,292.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.