Home / 268,929.95-403,144.32-91,315.47

Finding the Fourth Proportional to 268,929.95, 403,144.32 and 91,315.47

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Solution

The fourth proportional to 268,929.95, 403,144.32 and 91,315.47 is: 136,888.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,929.95 : 403,144.32 = 91,315.47 : x
  2. Step 2: Convert to fraction form
    268,929.95/403,144.32 = 91,315.47/x
  3. Step 3: Cross multiply
    268,929.95x = 403,144.32 × 91,315.47
  4. Step 4: Simplify right side
    268,929.95x = 36,813,313,058.63
  5. Step 5: Solve for x
    x = 36,813,313,058.63/268,929.95
  6. Step 6: Final answer
    x = 136,888.11

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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.