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Finding the Fourth Proportional to 340,480.94, 510,907.16 and 140,818.64

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Solution

The fourth proportional to 340,480.94, 510,907.16 and 140,818.64 is: 211,304.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,480.94 : 510,907.16 = 140,818.64 : x
  2. Step 2: Convert to fraction form
    340,480.94/510,907.16 = 140,818.64/x
  3. Step 3: Cross multiply
    340,480.94x = 510,907.16 × 140,818.64
  4. Step 4: Simplify right side
    340,480.94x = 71,945,251,437.46
  5. Step 5: Solve for x
    x = 71,945,251,437.46/340,480.94
  6. Step 6: Final answer
    x = 211,304.78

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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.