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Finding the Fourth Proportional to 308,857.60, 463,243.20 and 98,516.80

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Solution

The fourth proportional to 308,857.60, 463,243.20 and 98,516.80 is: 147,761.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,857.60 : 463,243.20 = 98,516.80 : x
  2. Step 2: Convert to fraction form
    308,857.60/463,243.20 = 98,516.80/x
  3. Step 3: Cross multiply
    308,857.60x = 463,243.20 × 98,516.80
  4. Step 4: Simplify right side
    308,857.60x = 45,637,237,685.76
  5. Step 5: Solve for x
    x = 45,637,237,685.76/308,857.60
  6. Step 6: Final answer
    x = 147,761.42

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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.