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Finding the Fourth Proportional to 261,044.93, 391,567.71 and 71,506.93

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Solution

The fourth proportional to 261,044.93, 391,567.71 and 71,506.93 is: 107,260.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,044.93 : 391,567.71 = 71,506.93 : x
  2. Step 2: Convert to fraction form
    261,044.93/391,567.71 = 71,506.93/x
  3. Step 3: Cross multiply
    261,044.93x = 391,567.71 × 71,506.93
  4. Step 4: Simplify right side
    261,044.93x = 27,999,804,249.31
  5. Step 5: Solve for x
    x = 27,999,804,249.31/261,044.93
  6. Step 6: Final answer
    x = 107,260.48

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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.