Home / 282,961.71-390,289.29-192,159.90

Finding the Fourth Proportional to 282,961.71, 390,289.29 and 192,159.90

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Solution

The fourth proportional to 282,961.71, 390,289.29 and 192,159.90 is: 265,046.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,961.71 : 390,289.29 = 192,159.90 : x
  2. Step 2: Convert to fraction form
    282,961.71/390,289.29 = 192,159.90/x
  3. Step 3: Cross multiply
    282,961.71x = 390,289.29 × 192,159.90
  4. Step 4: Simplify right side
    282,961.71x = 74,997,950,937.47
  5. Step 5: Solve for x
    x = 74,997,950,937.47/282,961.71
  6. Step 6: Final answer
    x = 265,046.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.