Home / 268,409.04-402,363.24-90,792.48

Finding the Fourth Proportional to 268,409.04, 402,363.24 and 90,792.48

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Solution

The fourth proportional to 268,409.04, 402,363.24 and 90,792.48 is: 136,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,409.04 : 402,363.24 = 90,792.48 : x
  2. Step 2: Convert to fraction form
    268,409.04/402,363.24 = 90,792.48/x
  3. Step 3: Cross multiply
    268,409.04x = 402,363.24 × 90,792.48
  4. Step 4: Simplify right side
    268,409.04x = 36,531,556,420.44
  5. Step 5: Solve for x
    x = 36,531,556,420.44/268,409.04
  6. Step 6: Final answer
    x = 136,104.05

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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.