Home / 268,338.08-402,579.70-90,845.10

Finding the Fourth Proportional to 268,338.08, 402,579.70 and 90,845.10

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Solution

The fourth proportional to 268,338.08, 402,579.70 and 90,845.10 is: 136,292.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,338.08 : 402,579.70 = 90,845.10 : x
  2. Step 2: Convert to fraction form
    268,338.08/402,579.70 = 90,845.10/x
  3. Step 3: Cross multiply
    268,338.08x = 402,579.70 × 90,845.10
  4. Step 4: Simplify right side
    268,338.08x = 36,572,393,104.47
  5. Step 5: Solve for x
    x = 36,572,393,104.47/268,338.08
  6. Step 6: Final answer
    x = 136,292.22

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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.