Home / 279,110.22-385,315.11-188,943.18

Finding the Fourth Proportional to 279,110.22, 385,315.11 and 188,943.18

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Solution

The fourth proportional to 279,110.22, 385,315.11 and 188,943.18 is: 260,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,110.22 : 385,315.11 = 188,943.18 : x
  2. Step 2: Convert to fraction form
    279,110.22/385,315.11 = 188,943.18/x
  3. Step 3: Cross multiply
    279,110.22x = 385,315.11 × 188,943.18
  4. Step 4: Simplify right side
    279,110.22x = 72,802,662,185.45
  5. Step 5: Solve for x
    x = 72,802,662,185.45/279,110.22
  6. Step 6: Final answer
    x = 260,838.40

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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.