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Finding the Fourth Proportional to 266,776.91, 368,149.46 and 145,920.56

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Solution

The fourth proportional to 266,776.91, 368,149.46 and 145,920.56 is: 201,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,776.91 : 368,149.46 = 145,920.56 : x
  2. Step 2: Convert to fraction form
    266,776.91/368,149.46 = 145,920.56/x
  3. Step 3: Cross multiply
    266,776.91x = 368,149.46 × 145,920.56
  4. Step 4: Simplify right side
    266,776.91x = 53,720,572,796.55
  5. Step 5: Solve for x
    x = 53,720,572,796.55/266,776.91
  6. Step 6: Final answer
    x = 201,368.90

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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.