Home / 279,382.56-385,556.12-152,066.40

Finding the Fourth Proportional to 279,382.56, 385,556.12 and 152,066.40

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Solution

The fourth proportional to 279,382.56, 385,556.12 and 152,066.40 is: 209,856.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,382.56 : 385,556.12 = 152,066.40 : x
  2. Step 2: Convert to fraction form
    279,382.56/385,556.12 = 152,066.40/x
  3. Step 3: Cross multiply
    279,382.56x = 385,556.12 × 152,066.40
  4. Step 4: Simplify right side
    279,382.56x = 58,630,131,166.37
  5. Step 5: Solve for x
    x = 58,630,131,166.37/279,382.56
  6. Step 6: Final answer
    x = 209,856.09

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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.