Home / 279,127.16-385,191.24-151,799.84

Finding the Fourth Proportional to 279,127.16, 385,191.24 and 151,799.84

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Solution

The fourth proportional to 279,127.16, 385,191.24 and 151,799.84 is: 209,481.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,127.16 : 385,191.24 = 151,799.84 : x
  2. Step 2: Convert to fraction form
    279,127.16/385,191.24 = 151,799.84/x
  3. Step 3: Cross multiply
    279,127.16x = 385,191.24 × 151,799.84
  4. Step 4: Simplify right side
    279,127.16x = 58,471,968,601.40
  5. Step 5: Solve for x
    x = 58,471,968,601.40/279,127.16
  6. Step 6: Final answer
    x = 209,481.47

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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.