Home / 261,184.31-391,776.46-172,417.01

Finding the Fourth Proportional to 261,184.31, 391,776.46 and 172,417.01

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Solution

The fourth proportional to 261,184.31, 391,776.46 and 172,417.01 is: 258,625.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,184.31 : 391,776.46 = 172,417.01 : x
  2. Step 2: Convert to fraction form
    261,184.31/391,776.46 = 172,417.01/x
  3. Step 3: Cross multiply
    261,184.31x = 391,776.46 × 172,417.01
  4. Step 4: Simplify right side
    261,184.31x = 67,548,926,369.98
  5. Step 5: Solve for x
    x = 67,548,926,369.98/261,184.31
  6. Step 6: Final answer
    x = 258,625.52

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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.