Home / 268,946.36-403,456.52-91,405.72

Finding the Fourth Proportional to 268,946.36, 403,456.52 and 91,405.72

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Solution

The fourth proportional to 268,946.36, 403,456.52 and 91,405.72 is: 137,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,946.36 : 403,456.52 = 91,405.72 : x
  2. Step 2: Convert to fraction form
    268,946.36/403,456.52 = 91,405.72/x
  3. Step 3: Cross multiply
    268,946.36x = 403,456.52 × 91,405.72
  4. Step 4: Simplify right side
    268,946.36x = 36,878,233,699.29
  5. Step 5: Solve for x
    x = 36,878,233,699.29/268,946.36
  6. Step 6: Final answer
    x = 137,121.15

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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.