Home / 261,374.11-391,070.73-154,815.23

Finding the Fourth Proportional to 261,374.11, 391,070.73 and 154,815.23

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Solution

The fourth proportional to 261,374.11, 391,070.73 and 154,815.23 is: 231,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,374.11 : 391,070.73 = 154,815.23 : x
  2. Step 2: Convert to fraction form
    261,374.11/391,070.73 = 154,815.23/x
  3. Step 3: Cross multiply
    261,374.11x = 391,070.73 × 154,815.23
  4. Step 4: Simplify right side
    261,374.11x = 60,543,706,569.45
  5. Step 5: Solve for x
    x = 60,543,706,569.45/261,374.11
  6. Step 6: Final answer
    x = 231,636.21

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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.