Home / 279,189.72-385,297.56-151,862.76

Finding the Fourth Proportional to 279,189.72, 385,297.56 and 151,862.76

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Solution

The fourth proportional to 279,189.72, 385,297.56 and 151,862.76 is: 209,579.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,189.72 : 385,297.56 = 151,862.76 : x
  2. Step 2: Convert to fraction form
    279,189.72/385,297.56 = 151,862.76/x
  3. Step 3: Cross multiply
    279,189.72x = 385,297.56 × 151,862.76
  4. Step 4: Simplify right side
    279,189.72x = 58,512,350,882.87
  5. Step 5: Solve for x
    x = 58,512,350,882.87/279,189.72
  6. Step 6: Final answer
    x = 209,579.17

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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.