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Finding the Fourth Proportional to 253,266.77, 349,516.78 and 144,387.21

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Solution

The fourth proportional to 253,266.77, 349,516.78 and 144,387.21 is: 199,259.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,266.77 : 349,516.78 = 144,387.21 : x
  2. Step 2: Convert to fraction form
    253,266.77/349,516.78 = 144,387.21/x
  3. Step 3: Cross multiply
    253,266.77x = 349,516.78 × 144,387.21
  4. Step 4: Simplify right side
    253,266.77x = 50,465,752,712.38
  5. Step 5: Solve for x
    x = 50,465,752,712.38/253,266.77
  6. Step 6: Final answer
    x = 199,259.27

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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.