Home / 303,121.20-454,681.80-163,153.20

Finding the Fourth Proportional to 303,121.20, 454,681.80 and 163,153.20

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Solution

The fourth proportional to 303,121.20, 454,681.80 and 163,153.20 is: 244,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,121.20 : 454,681.80 = 163,153.20 : x
  2. Step 2: Convert to fraction form
    303,121.20/454,681.80 = 163,153.20/x
  3. Step 3: Cross multiply
    303,121.20x = 454,681.80 × 163,153.20
  4. Step 4: Simplify right side
    303,121.20x = 74,182,790,651.76
  5. Step 5: Solve for x
    x = 74,182,790,651.76/303,121.20
  6. Step 6: Final answer
    x = 244,729.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.