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Finding the Fourth Proportional to 272,957.60, 409,436.40 and 245,401.40

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Solution

The fourth proportional to 272,957.60, 409,436.40 and 245,401.40 is: 368,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,957.60 : 409,436.40 = 245,401.40 : x
  2. Step 2: Convert to fraction form
    272,957.60/409,436.40 = 245,401.40/x
  3. Step 3: Cross multiply
    272,957.60x = 409,436.40 × 245,401.40
  4. Step 4: Simplify right side
    272,957.60x = 100,476,265,770.96
  5. Step 5: Solve for x
    x = 100,476,265,770.96/272,957.60
  6. Step 6: Final answer
    x = 368,102.10

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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.