Home / 485,981.53-729,297.68-201,672.36

Finding the Fourth Proportional to 485,981.53, 729,297.68 and 201,672.36

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Solution

The fourth proportional to 485,981.53, 729,297.68 and 201,672.36 is: 302,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,981.53 : 729,297.68 = 201,672.36 : x
  2. Step 2: Convert to fraction form
    485,981.53/729,297.68 = 201,672.36/x
  3. Step 3: Cross multiply
    485,981.53x = 729,297.68 × 201,672.36
  4. Step 4: Simplify right side
    485,981.53x = 147,079,183,259.76
  5. Step 5: Solve for x
    x = 147,079,183,259.76/485,981.53
  6. Step 6: Final answer
    x = 302,643.57

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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.