Home / 268,290.38-402,410.97-90,777.06

Finding the Fourth Proportional to 268,290.38, 402,410.97 and 90,777.06

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Solution

The fourth proportional to 268,290.38, 402,410.97 and 90,777.06 is: 136,157.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,290.38 : 402,410.97 = 90,777.06 : x
  2. Step 2: Convert to fraction form
    268,290.38/402,410.97 = 90,777.06/x
  3. Step 3: Cross multiply
    268,290.38x = 402,410.97 × 90,777.06
  4. Step 4: Simplify right side
    268,290.38x = 36,529,684,768.35
  5. Step 5: Solve for x
    x = 36,529,684,768.35/268,290.38
  6. Step 6: Final answer
    x = 136,157.27

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1.5x scale

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.