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Finding the Fourth Proportional to 308,079.84, 462,116.10 and 97,719.60

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Solution

The fourth proportional to 308,079.84, 462,116.10 and 97,719.60 is: 146,578.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,079.84 : 462,116.10 = 97,719.60 : x
  2. Step 2: Convert to fraction form
    308,079.84/462,116.10 = 97,719.60/x
  3. Step 3: Cross multiply
    308,079.84x = 462,116.10 × 97,719.60
  4. Step 4: Simplify right side
    308,079.84x = 45,157,800,445.56
  5. Step 5: Solve for x
    x = 45,157,800,445.56/308,079.84
  6. Step 6: Final answer
    x = 146,578.24

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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.