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Finding the Fourth Proportional to 340,425.88, 510,592.85 and 140,718.56

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Solution

The fourth proportional to 340,425.88, 510,592.85 and 140,718.56 is: 211,058.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,425.88 : 510,592.85 = 140,718.56 : x
  2. Step 2: Convert to fraction form
    340,425.88/510,592.85 = 140,718.56/x
  3. Step 3: Cross multiply
    340,425.88x = 510,592.85 × 140,718.56
  4. Step 4: Simplify right side
    340,425.88x = 71,849,889,894.70
  5. Step 5: Solve for x
    x = 71,849,889,894.70/340,425.88
  6. Step 6: Final answer
    x = 211,058.84

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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.