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Finding the Fourth Proportional to 266,984.24, 400,425.30 and 79,995.74

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Solution

The fourth proportional to 266,984.24, 400,425.30 and 79,995.74 is: 119,978.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,984.24 : 400,425.30 = 79,995.74 : x
  2. Step 2: Convert to fraction form
    266,984.24/400,425.30 = 79,995.74/x
  3. Step 3: Cross multiply
    266,984.24x = 400,425.30 × 79,995.74
  4. Step 4: Simplify right side
    266,984.24x = 32,032,316,186.10
  5. Step 5: Solve for x
    x = 32,032,316,186.10/266,984.24
  6. Step 6: Final answer
    x = 119,978.31

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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.