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Finding the Fourth Proportional to 340,679.33, 510,631.47 and 207,265.49

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Solution

The fourth proportional to 340,679.33, 510,631.47 and 207,265.49 is: 310,662.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,679.33 : 510,631.47 = 207,265.49 : x
  2. Step 2: Convert to fraction form
    340,679.33/510,631.47 = 207,265.49/x
  3. Step 3: Cross multiply
    340,679.33x = 510,631.47 × 207,265.49
  4. Step 4: Simplify right side
    340,679.33x = 105,836,281,838.97
  5. Step 5: Solve for x
    x = 105,836,281,838.97/340,679.33
  6. Step 6: Final answer
    x = 310,662.47

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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.