Home / 268,403.04-402,354.27-90,786.47

Finding the Fourth Proportional to 268,403.04, 402,354.27 and 90,786.47

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Solution

The fourth proportional to 268,403.04, 402,354.27 and 90,786.47 is: 136,095.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,403.04 : 402,354.27 = 90,786.47 : x
  2. Step 2: Convert to fraction form
    268,403.04/402,354.27 = 90,786.47/x
  3. Step 3: Cross multiply
    268,403.04x = 402,354.27 × 90,786.47
  4. Step 4: Simplify right side
    268,403.04x = 36,528,321,850.96
  5. Step 5: Solve for x
    x = 36,528,321,850.96/268,403.04
  6. Step 6: Final answer
    x = 136,095.04

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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.