Home / 261,269.08-391,238.88-172,252.51

Finding the Fourth Proportional to 261,269.08, 391,238.88 and 172,252.51

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Solution

The fourth proportional to 261,269.08, 391,238.88 and 172,252.51 is: 257,940.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,269.08 : 391,238.88 = 172,252.51 : x
  2. Step 2: Convert to fraction form
    261,269.08/391,238.88 = 172,252.51/x
  3. Step 3: Cross multiply
    261,269.08x = 391,238.88 × 172,252.51
  4. Step 4: Simplify right side
    261,269.08x = 67,391,879,089.59
  5. Step 5: Solve for x
    x = 67,391,879,089.59/261,269.08
  6. Step 6: Final answer
    x = 257,940.51

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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.