Home / 354,310.20-531,497.70-143,904.60

Finding the Fourth Proportional to 354,310.20, 531,497.70 and 143,904.60

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Solution

The fourth proportional to 354,310.20, 531,497.70 and 143,904.60 is: 215,870.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,310.20 : 531,497.70 = 143,904.60 : x
  2. Step 2: Convert to fraction form
    354,310.20/531,497.70 = 143,904.60/x
  3. Step 3: Cross multiply
    354,310.20x = 531,497.70 × 143,904.60
  4. Step 4: Simplify right side
    354,310.20x = 76,484,963,919.42
  5. Step 5: Solve for x
    x = 76,484,963,919.42/354,310.20
  6. Step 6: Final answer
    x = 215,870.06

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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.