Home / 374,917.12-517,394-205,151.20

Finding the Fourth Proportional to 374,917.12, 517,394 and 205,151.20

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Solution

The fourth proportional to 374,917.12, 517,394 and 205,151.20 is: 283,113.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,917.12 : 517,394 = 205,151.20 : x
  2. Step 2: Convert to fraction form
    374,917.12/517,394 = 205,151.20/x
  3. Step 3: Cross multiply
    374,917.12x = 517,394 × 205,151.20
  4. Step 4: Simplify right side
    374,917.12x = 106,143,999,972.80
  5. Step 5: Solve for x
    x = 106,143,999,972.80/374,917.12
  6. Step 6: Final answer
    x = 283,113.24

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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.