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Finding the Fourth Proportional to 248,393.61, 372,365.76 and 90,585.09

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Solution

The fourth proportional to 248,393.61, 372,365.76 and 90,585.09 is: 135,795.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,393.61 : 372,365.76 = 90,585.09 : x
  2. Step 2: Convert to fraction form
    248,393.61/372,365.76 = 90,585.09/x
  3. Step 3: Cross multiply
    248,393.61x = 372,365.76 × 90,585.09
  4. Step 4: Simplify right side
    248,393.61x = 33,730,785,882.52
  5. Step 5: Solve for x
    x = 33,730,785,882.52/248,393.61
  6. Step 6: Final answer
    x = 135,795.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.