Home / 279,111.22-385,316.49-188,944.18

Finding the Fourth Proportional to 279,111.22, 385,316.49 and 188,944.18

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Solution

The fourth proportional to 279,111.22, 385,316.49 and 188,944.18 is: 260,839.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,111.22 : 385,316.49 = 188,944.18 : x
  2. Step 2: Convert to fraction form
    279,111.22/385,316.49 = 188,944.18/x
  3. Step 3: Cross multiply
    279,111.22x = 385,316.49 × 188,944.18
  4. Step 4: Simplify right side
    279,111.22x = 72,803,308,243.53
  5. Step 5: Solve for x
    x = 72,803,308,243.53/279,111.22
  6. Step 6: Final answer
    x = 260,839.78

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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.