Home / 353,569.07-486,693.14-308,168.30

Finding the Fourth Proportional to 353,569.07, 486,693.14 and 308,168.30

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Solution

The fourth proportional to 353,569.07, 486,693.14 and 308,168.30 is: 424,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,569.07 : 486,693.14 = 308,168.30 : x
  2. Step 2: Convert to fraction form
    353,569.07/486,693.14 = 308,168.30/x
  3. Step 3: Cross multiply
    353,569.07x = 486,693.14 × 308,168.30
  4. Step 4: Simplify right side
    353,569.07x = 149,983,393,601.16
  5. Step 5: Solve for x
    x = 149,983,393,601.16/353,569.07
  6. Step 6: Final answer
    x = 424,198.29

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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.