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Finding the Fourth Proportional to 268,902.60, 403,353.90 and 247,907.40

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Solution

The fourth proportional to 268,902.60, 403,353.90 and 247,907.40 is: 371,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,902.60 : 403,353.90 = 247,907.40 : x
  2. Step 2: Convert to fraction form
    268,902.60/403,353.90 = 247,907.40/x
  3. Step 3: Cross multiply
    268,902.60x = 403,353.90 × 247,907.40
  4. Step 4: Simplify right side
    268,902.60x = 99,994,416,628.86
  5. Step 5: Solve for x
    x = 99,994,416,628.86/268,902.60
  6. Step 6: Final answer
    x = 371,861.10

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1.5x scale

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.