Home / 281,632.28-388,637.68-160,768.76

Finding the Fourth Proportional to 281,632.28, 388,637.68 and 160,768.76

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Solution

The fourth proportional to 281,632.28, 388,637.68 and 160,768.76 is: 221,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,632.28 : 388,637.68 = 160,768.76 : x
  2. Step 2: Convert to fraction form
    281,632.28/388,637.68 = 160,768.76/x
  3. Step 3: Cross multiply
    281,632.28x = 388,637.68 × 160,768.76
  4. Step 4: Simplify right side
    281,632.28x = 62,480,797,902.88
  5. Step 5: Solve for x
    x = 62,480,797,902.88/281,632.28
  6. Step 6: Final answer
    x = 221,852.40

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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.