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Finding the Fourth Proportional to 266,649.12, 367,976.43 and 145,798.20

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Solution

The fourth proportional to 266,649.12, 367,976.43 and 145,798.20 is: 201,201.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,649.12 : 367,976.43 = 145,798.20 : x
  2. Step 2: Convert to fraction form
    266,649.12/367,976.43 = 145,798.20/x
  3. Step 3: Cross multiply
    266,649.12x = 367,976.43 × 145,798.20
  4. Step 4: Simplify right side
    266,649.12x = 53,650,301,136.43
  5. Step 5: Solve for x
    x = 53,650,301,136.43/266,649.12
  6. Step 6: Final answer
    x = 201,201.87

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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.