Home / 279,158.14-385,234.64-151,833.74

Finding the Fourth Proportional to 279,158.14, 385,234.64 and 151,833.74

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Solution

The fourth proportional to 279,158.14, 385,234.64 and 151,833.74 is: 209,528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,158.14 : 385,234.64 = 151,833.74 : x
  2. Step 2: Convert to fraction form
    279,158.14/385,234.64 = 151,833.74/x
  3. Step 3: Cross multiply
    279,158.14x = 385,234.64 × 151,833.74
  4. Step 4: Simplify right side
    279,158.14x = 58,491,616,168.75
  5. Step 5: Solve for x
    x = 58,491,616,168.75/279,158.14
  6. Step 6: Final answer
    x = 209,528.61

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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.