Home / 282,023.40-389,167.56-161,140.62

Finding the Fourth Proportional to 282,023.40, 389,167.56 and 161,140.62

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Solution

The fourth proportional to 282,023.40, 389,167.56 and 161,140.62 is: 222,359.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,023.40 : 389,167.56 = 161,140.62 : x
  2. Step 2: Convert to fraction form
    282,023.40/389,167.56 = 161,140.62/x
  3. Step 3: Cross multiply
    282,023.40x = 389,167.56 × 161,140.62
  4. Step 4: Simplify right side
    282,023.40x = 62,710,701,902.29
  5. Step 5: Solve for x
    x = 62,710,701,902.29/282,023.40
  6. Step 6: Final answer
    x = 222,359.92

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1.5x scale

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.