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Finding the Fourth Proportional to 551,100.31, 826,681.26 and 172,073.39

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Solution

The fourth proportional to 551,100.31, 826,681.26 and 172,073.39 is: 258,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,100.31 : 826,681.26 = 172,073.39 : x
  2. Step 2: Convert to fraction form
    551,100.31/826,681.26 = 172,073.39/x
  3. Step 3: Cross multiply
    551,100.31x = 826,681.26 × 172,073.39
  4. Step 4: Simplify right side
    551,100.31x = 142,249,846,857.67
  5. Step 5: Solve for x
    x = 142,249,846,857.67/551,100.31
  6. Step 6: Final answer
    x = 258,119.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.