Home / 279,293.06-385,432.63-151,976.86

Finding the Fourth Proportional to 279,293.06, 385,432.63 and 151,976.86

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Solution

The fourth proportional to 279,293.06, 385,432.63 and 151,976.86 is: 209,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,293.06 : 385,432.63 = 151,976.86 : x
  2. Step 2: Convert to fraction form
    279,293.06/385,432.63 = 151,976.86/x
  3. Step 3: Cross multiply
    279,293.06x = 385,432.63 × 151,976.86
  4. Step 4: Simplify right side
    279,293.06x = 58,576,839,505.42
  5. Step 5: Solve for x
    x = 58,576,839,505.42/279,293.06
  6. Step 6: Final answer
    x = 209,732.53

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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.