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Finding the Fourth Proportional to 383,151.30, 573,742.80 and 303,763.20

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Solution

The fourth proportional to 383,151.30, 573,742.80 and 303,763.20 is: 454,864.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,151.30 : 573,742.80 = 303,763.20 : x
  2. Step 2: Convert to fraction form
    383,151.30/573,742.80 = 303,763.20/x
  3. Step 3: Cross multiply
    383,151.30x = 573,742.80 × 303,763.20
  4. Step 4: Simplify right side
    383,151.30x = 174,281,948,904.96
  5. Step 5: Solve for x
    x = 174,281,948,904.96/383,151.30
  6. Step 6: Final answer
    x = 454,864.56

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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.