Home / 266,778.10-368,151.09-145,921.74

Finding the Fourth Proportional to 266,778.10, 368,151.09 and 145,921.74

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Solution

The fourth proportional to 266,778.10, 368,151.09 and 145,921.74 is: 201,370.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,778.10 : 368,151.09 = 145,921.74 : x
  2. Step 2: Convert to fraction form
    266,778.10/368,151.09 = 145,921.74/x
  3. Step 3: Cross multiply
    266,778.10x = 368,151.09 × 145,921.74
  4. Step 4: Simplify right side
    266,778.10x = 53,721,247,635.70
  5. Step 5: Solve for x
    x = 53,721,247,635.70/266,778.10
  6. Step 6: Final answer
    x = 201,370.53

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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.