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Finding the Fourth Proportional to 270,071.79, 372,694.69 and 147,561.54

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Solution

The fourth proportional to 270,071.79, 372,694.69 and 147,561.54 is: 203,632.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,071.79 : 372,694.69 = 147,561.54 : x
  2. Step 2: Convert to fraction form
    270,071.79/372,694.69 = 147,561.54/x
  3. Step 3: Cross multiply
    270,071.79x = 372,694.69 × 147,561.54
  4. Step 4: Simplify right side
    270,071.79x = 54,995,402,656.29
  5. Step 5: Solve for x
    x = 54,995,402,656.29/270,071.79
  6. Step 6: Final answer
    x = 203,632.54

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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.