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Finding the Fourth Proportional to 340,268.84, 510,479.66 and 103,630.20

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Solution

The fourth proportional to 340,268.84, 510,479.66 and 103,630.20 is: 155,468.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,268.84 : 510,479.66 = 103,630.20 : x
  2. Step 2: Convert to fraction form
    340,268.84/510,479.66 = 103,630.20/x
  3. Step 3: Cross multiply
    340,268.84x = 510,479.66 × 103,630.20
  4. Step 4: Simplify right side
    340,268.84x = 52,901,109,261.73
  5. Step 5: Solve for x
    x = 52,901,109,261.73/340,268.84
  6. Step 6: Final answer
    x = 155,468.57

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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.