Home / 279,144.03-385,217.69-151,821.75

Finding the Fourth Proportional to 279,144.03, 385,217.69 and 151,821.75

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Solution

The fourth proportional to 279,144.03, 385,217.69 and 151,821.75 is: 209,513.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,144.03 : 385,217.69 = 151,821.75 : x
  2. Step 2: Convert to fraction form
    279,144.03/385,217.69 = 151,821.75/x
  3. Step 3: Cross multiply
    279,144.03x = 385,217.69 × 151,821.75
  4. Step 4: Simplify right side
    279,144.03x = 58,484,423,826.76
  5. Step 5: Solve for x
    x = 58,484,423,826.76/279,144.03
  6. Step 6: Final answer
    x = 209,513.43

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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.