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Finding the Fourth Proportional to 308,127.39, 461,895.83 and 130,389.90

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Solution

The fourth proportional to 308,127.39, 461,895.83 and 130,389.90 is: 195,459.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,127.39 : 461,895.83 = 130,389.90 : x
  2. Step 2: Convert to fraction form
    308,127.39/461,895.83 = 130,389.90/x
  3. Step 3: Cross multiply
    308,127.39x = 461,895.83 × 130,389.90
  4. Step 4: Simplify right side
    308,127.39x = 60,226,550,432.17
  5. Step 5: Solve for x
    x = 60,226,550,432.17/308,127.39
  6. Step 6: Final answer
    x = 195,459.91

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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.