Home / 281,225.79-388,173.06-160,432.92

Finding the Fourth Proportional to 281,225.79, 388,173.06 and 160,432.92

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Solution

The fourth proportional to 281,225.79, 388,173.06 and 160,432.92 is: 221,443.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,225.79 : 388,173.06 = 160,432.92 : x
  2. Step 2: Convert to fraction form
    281,225.79/388,173.06 = 160,432.92/x
  3. Step 3: Cross multiply
    281,225.79x = 388,173.06 × 160,432.92
  4. Step 4: Simplify right side
    281,225.79x = 62,275,737,481.14
  5. Step 5: Solve for x
    x = 62,275,737,481.14/281,225.79
  6. Step 6: Final answer
    x = 221,443.91

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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.