Home / 281,254.20-388,111.32-160,400.60

Finding the Fourth Proportional to 281,254.20, 388,111.32 and 160,400.60

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Solution

The fourth proportional to 281,254.20, 388,111.32 and 160,400.60 is: 221,341.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,254.20 : 388,111.32 = 160,400.60 : x
  2. Step 2: Convert to fraction form
    281,254.20/388,111.32 = 160,400.60/x
  3. Step 3: Cross multiply
    281,254.20x = 388,111.32 × 160,400.60
  4. Step 4: Simplify right side
    281,254.20x = 62,253,288,594.79
  5. Step 5: Solve for x
    x = 62,253,288,594.79/281,254.20
  6. Step 6: Final answer
    x = 221,341.72

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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.