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Finding the Fourth Proportional to 340,343.70, 510,515.55 and 245,865.30

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Solution

The fourth proportional to 340,343.70, 510,515.55 and 245,865.30 is: 368,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,343.70 : 510,515.55 = 245,865.30 : x
  2. Step 2: Convert to fraction form
    340,343.70/510,515.55 = 245,865.30/x
  3. Step 3: Cross multiply
    340,343.70x = 510,515.55 × 245,865.30
  4. Step 4: Simplify right side
    340,343.70x = 125,518,058,855.42
  5. Step 5: Solve for x
    x = 125,518,058,855.42/340,343.70
  6. Step 6: Final answer
    x = 368,797.95

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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.