Home / 266,338.08-398,962.80-123,968.16

Finding the Fourth Proportional to 266,338.08, 398,962.80 and 123,968.16

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Solution

The fourth proportional to 266,338.08, 398,962.80 and 123,968.16 is: 185,698.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,338.08 : 398,962.80 = 123,968.16 : x
  2. Step 2: Convert to fraction form
    266,338.08/398,962.80 = 123,968.16/x
  3. Step 3: Cross multiply
    266,338.08x = 398,962.80 × 123,968.16
  4. Step 4: Simplify right side
    266,338.08x = 49,458,684,224.45
  5. Step 5: Solve for x
    x = 49,458,684,224.45/266,338.08
  6. Step 6: Final answer
    x = 185,698.88

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1.5x scale

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.