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Finding the Fourth Proportional to 349,981.96, 482,970.90 and 199,078.60

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Solution

The fourth proportional to 349,981.96, 482,970.90 and 199,078.60 is: 274,726.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,981.96 : 482,970.90 = 199,078.60 : x
  2. Step 2: Convert to fraction form
    349,981.96/482,970.90 = 199,078.60/x
  3. Step 3: Cross multiply
    349,981.96x = 482,970.90 × 199,078.60
  4. Step 4: Simplify right side
    349,981.96x = 96,149,170,612.74
  5. Step 5: Solve for x
    x = 96,149,170,612.74/349,981.96
  6. Step 6: Final answer
    x = 274,726.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.