Home / 312,728.03-431,566.19-169,488.03

Finding the Fourth Proportional to 312,728.03, 431,566.19 and 169,488.03

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Solution

The fourth proportional to 312,728.03, 431,566.19 and 169,488.03 is: 233,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,728.03 : 431,566.19 = 169,488.03 : x
  2. Step 2: Convert to fraction form
    312,728.03/431,566.19 = 169,488.03/x
  3. Step 3: Cross multiply
    312,728.03x = 431,566.19 × 169,488.03
  4. Step 4: Simplify right side
    312,728.03x = 73,145,302,510.27
  5. Step 5: Solve for x
    x = 73,145,302,510.27/312,728.03
  6. Step 6: Final answer
    x = 233,894.30

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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.