Home / 266,820.69-368,221.34-145,959.21

Finding the Fourth Proportional to 266,820.69, 368,221.34 and 145,959.21

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Solution

The fourth proportional to 266,820.69, 368,221.34 and 145,959.21 is: 201,428.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,820.69 : 368,221.34 = 145,959.21 : x
  2. Step 2: Convert to fraction form
    266,820.69/368,221.34 = 145,959.21/x
  3. Step 3: Cross multiply
    266,820.69x = 368,221.34 × 145,959.21
  4. Step 4: Simplify right side
    266,820.69x = 53,745,295,891.54
  5. Step 5: Solve for x
    x = 53,745,295,891.54/266,820.69
  6. Step 6: Final answer
    x = 201,428.52

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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.