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Finding the Fourth Proportional to 379,344.81, 523,489.73 and 207,259.08

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Solution

The fourth proportional to 379,344.81, 523,489.73 and 207,259.08 is: 286,014.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,344.81 : 523,489.73 = 207,259.08 : x
  2. Step 2: Convert to fraction form
    379,344.81/523,489.73 = 207,259.08/x
  3. Step 3: Cross multiply
    379,344.81x = 523,489.73 × 207,259.08
  4. Step 4: Simplify right side
    379,344.81x = 108,497,996,175.50
  5. Step 5: Solve for x
    x = 108,497,996,175.50/379,344.81
  6. Step 6: Final answer
    x = 286,014.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.