Home / 307,976.13-462,110.40-213,351.93

Finding the Fourth Proportional to 307,976.13, 462,110.40 and 213,351.93

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Solution

The fourth proportional to 307,976.13, 462,110.40 and 213,351.93 is: 320,129.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,976.13 : 462,110.40 = 213,351.93 : x
  2. Step 2: Convert to fraction form
    307,976.13/462,110.40 = 213,351.93/x
  3. Step 3: Cross multiply
    307,976.13x = 462,110.40 × 213,351.93
  4. Step 4: Simplify right side
    307,976.13x = 98,592,145,713.07
  5. Step 5: Solve for x
    x = 98,592,145,713.07/307,976.13
  6. Step 6: Final answer
    x = 320,129.18

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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.