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Finding the Fourth Proportional to 340,767.60, 511,765.80 and 329,708.40

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Solution

The fourth proportional to 340,767.60, 511,765.80 and 329,708.40 is: 495,157.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,767.60 : 511,765.80 = 329,708.40 : x
  2. Step 2: Convert to fraction form
    340,767.60/511,765.80 = 329,708.40/x
  3. Step 3: Cross multiply
    340,767.60x = 511,765.80 × 329,708.40
  4. Step 4: Simplify right side
    340,767.60x = 168,733,483,092.72
  5. Step 5: Solve for x
    x = 168,733,483,092.72/340,767.60
  6. Step 6: Final answer
    x = 495,157.06

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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.