Home / 279,110.28-385,168.56-151,783.14

Finding the Fourth Proportional to 279,110.28, 385,168.56 and 151,783.14

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Solution

The fourth proportional to 279,110.28, 385,168.56 and 151,783.14 is: 209,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,110.28 : 385,168.56 = 151,783.14 : x
  2. Step 2: Convert to fraction form
    279,110.28/385,168.56 = 151,783.14/x
  3. Step 3: Cross multiply
    279,110.28x = 385,168.56 × 151,783.14
  4. Step 4: Simplify right side
    279,110.28x = 58,462,093,466.08
  5. Step 5: Solve for x
    x = 58,462,093,466.08/279,110.28
  6. Step 6: Final answer
    x = 209,458.76

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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.