Home / 312,570.24-431,345.04-169,332.96

Finding the Fourth Proportional to 312,570.24, 431,345.04 and 169,332.96

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Solution

The fourth proportional to 312,570.24, 431,345.04 and 169,332.96 is: 233,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,570.24 : 431,345.04 = 169,332.96 : x
  2. Step 2: Convert to fraction form
    312,570.24/431,345.04 = 169,332.96/x
  3. Step 3: Cross multiply
    312,570.24x = 431,345.04 × 169,332.96
  4. Step 4: Simplify right side
    312,570.24x = 73,040,932,404.52
  5. Step 5: Solve for x
    x = 73,040,932,404.52/312,570.24
  6. Step 6: Final answer
    x = 233,678.46

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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.