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Finding the Fourth Proportional to 254,663.20, 382,402.80 and 202,506.40

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Solution

The fourth proportional to 254,663.20, 382,402.80 and 202,506.40 is: 304,084.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,663.20 : 382,402.80 = 202,506.40 : x
  2. Step 2: Convert to fraction form
    254,663.20/382,402.80 = 202,506.40/x
  3. Step 3: Cross multiply
    254,663.20x = 382,402.80 × 202,506.40
  4. Step 4: Simplify right side
    254,663.20x = 77,439,014,377.92
  5. Step 5: Solve for x
    x = 77,439,014,377.92/254,663.20
  6. Step 6: Final answer
    x = 304,084.04

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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.