Home / 454,429.20-681,643.80-218,233.20

Finding the Fourth Proportional to 454,429.20, 681,643.80 and 218,233.20

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Solution

The fourth proportional to 454,429.20, 681,643.80 and 218,233.20 is: 327,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,429.20 : 681,643.80 = 218,233.20 : x
  2. Step 2: Convert to fraction form
    454,429.20/681,643.80 = 218,233.20/x
  3. Step 3: Cross multiply
    454,429.20x = 681,643.80 × 218,233.20
  4. Step 4: Simplify right side
    454,429.20x = 148,757,307,734.16
  5. Step 5: Solve for x
    x = 148,757,307,734.16/454,429.20
  6. Step 6: Final answer
    x = 327,349.80

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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.