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Finding the Fourth Proportional to 270,084.88, 372,641.34 and 155,357.56

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Solution

The fourth proportional to 270,084.88, 372,641.34 and 155,357.56 is: 214,349.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,084.88 : 372,641.34 = 155,357.56 : x
  2. Step 2: Convert to fraction form
    270,084.88/372,641.34 = 155,357.56/x
  3. Step 3: Cross multiply
    270,084.88x = 372,641.34 × 155,357.56
  4. Step 4: Simplify right side
    270,084.88x = 57,892,649,337.53
  5. Step 5: Solve for x
    x = 57,892,649,337.53/270,084.88
  6. Step 6: Final answer
    x = 214,349.83

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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.