Home / 281,823.12-388,894.32-160,947.72

Finding the Fourth Proportional to 281,823.12, 388,894.32 and 160,947.72

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Solution

The fourth proportional to 281,823.12, 388,894.32 and 160,947.72 is: 222,095.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,823.12 : 388,894.32 = 160,947.72 : x
  2. Step 2: Convert to fraction form
    281,823.12/388,894.32 = 160,947.72/x
  3. Step 3: Cross multiply
    281,823.12x = 388,894.32 × 160,947.72
  4. Step 4: Simplify right side
    281,823.12x = 62,591,654,124.95
  5. Step 5: Solve for x
    x = 62,591,654,124.95/281,823.12
  6. Step 6: Final answer
    x = 222,095.53

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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.