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Finding the Fourth Proportional to 482,869.20, 724,174.20 and 202,328.40

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Solution

The fourth proportional to 482,869.20, 724,174.20 and 202,328.40 is: 303,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,869.20 : 724,174.20 = 202,328.40 : x
  2. Step 2: Convert to fraction form
    482,869.20/724,174.20 = 202,328.40/x
  3. Step 3: Cross multiply
    482,869.20x = 724,174.20 × 202,328.40
  4. Step 4: Simplify right side
    482,869.20x = 146,521,007,207.28
  5. Step 5: Solve for x
    x = 146,521,007,207.28/482,869.20
  6. Step 6: Final answer
    x = 303,438.30

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