Home / 279,096.10-418,514.55-121,243.30

Finding the Fourth Proportional to 279,096.10, 418,514.55 and 121,243.30

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Solution

The fourth proportional to 279,096.10, 418,514.55 and 121,243.30 is: 181,808.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,096.10 : 418,514.55 = 121,243.30 : x
  2. Step 2: Convert to fraction form
    279,096.10/418,514.55 = 121,243.30/x
  3. Step 3: Cross multiply
    279,096.10x = 418,514.55 × 121,243.30
  4. Step 4: Simplify right side
    279,096.10x = 50,742,085,140.02
  5. Step 5: Solve for x
    x = 50,742,085,140.02/279,096.10
  6. Step 6: Final answer
    x = 181,808.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.