Home / 282,639.85-390,060.36-161,778.33

Finding the Fourth Proportional to 282,639.85, 390,060.36 and 161,778.33

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Solution

The fourth proportional to 282,639.85, 390,060.36 and 161,778.33 is: 223,264.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,639.85 : 390,060.36 = 161,778.33 : x
  2. Step 2: Convert to fraction form
    282,639.85/390,060.36 = 161,778.33/x
  3. Step 3: Cross multiply
    282,639.85x = 390,060.36 × 161,778.33
  4. Step 4: Simplify right side
    282,639.85x = 63,103,313,640.00
  5. Step 5: Solve for x
    x = 63,103,313,640.00/282,639.85
  6. Step 6: Final answer
    x = 223,264.04

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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.