Home / 282,100.23-389,298.30-161,244.12

Finding the Fourth Proportional to 282,100.23, 389,298.30 and 161,244.12

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Solution

The fourth proportional to 282,100.23, 389,298.30 and 161,244.12 is: 222,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,100.23 : 389,298.30 = 161,244.12 : x
  2. Step 2: Convert to fraction form
    282,100.23/389,298.30 = 161,244.12/x
  3. Step 3: Cross multiply
    282,100.23x = 389,298.30 × 161,244.12
  4. Step 4: Simplify right side
    282,100.23x = 62,772,061,801.00
  5. Step 5: Solve for x
    x = 62,772,061,801.00/282,100.23
  6. Step 6: Final answer
    x = 222,516.88

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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.