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Finding the Fourth Proportional to 360,394.97, 497,355.45 and 199,260.43

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Solution

The fourth proportional to 360,394.97, 497,355.45 and 199,260.43 is: 274,985.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,394.97 : 497,355.45 = 199,260.43 : x
  2. Step 2: Convert to fraction form
    360,394.97/497,355.45 = 199,260.43/x
  3. Step 3: Cross multiply
    360,394.97x = 497,355.45 × 199,260.43
  4. Step 4: Simplify right side
    360,394.97x = 99,103,260,829.84
  5. Step 5: Solve for x
    x = 99,103,260,829.84/360,394.97
  6. Step 6: Final answer
    x = 274,985.14

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1.5x scale

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.