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Finding the Fourth Proportional to 308,750.40, 463,125.60 and 131,263.20

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Solution

The fourth proportional to 308,750.40, 463,125.60 and 131,263.20 is: 196,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,750.40 : 463,125.60 = 131,263.20 : x
  2. Step 2: Convert to fraction form
    308,750.40/463,125.60 = 131,263.20/x
  3. Step 3: Cross multiply
    308,750.40x = 463,125.60 × 131,263.20
  4. Step 4: Simplify right side
    308,750.40x = 60,791,348,257.92
  5. Step 5: Solve for x
    x = 60,791,348,257.92/308,750.40
  6. Step 6: Final answer
    x = 196,894.80

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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.