Home / 266,928.18-400,454.55-77,392.50

Finding the Fourth Proportional to 266,928.18, 400,454.55 and 77,392.50

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Solution

The fourth proportional to 266,928.18, 400,454.55 and 77,392.50 is: 116,106.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,928.18 : 400,454.55 = 77,392.50 : x
  2. Step 2: Convert to fraction form
    266,928.18/400,454.55 = 77,392.50/x
  3. Step 3: Cross multiply
    266,928.18x = 400,454.55 × 77,392.50
  4. Step 4: Simplify right side
    266,928.18x = 30,992,178,760.88
  5. Step 5: Solve for x
    x = 30,992,178,760.88/266,928.18
  6. Step 6: Final answer
    x = 116,106.81

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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.