Home / 347,261.40-520,949.70-136,906.20

Finding the Fourth Proportional to 347,261.40, 520,949.70 and 136,906.20

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Solution

The fourth proportional to 347,261.40, 520,949.70 and 136,906.20 is: 205,382.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,261.40 : 520,949.70 = 136,906.20 : x
  2. Step 2: Convert to fraction form
    347,261.40/520,949.70 = 136,906.20/x
  3. Step 3: Cross multiply
    347,261.40x = 520,949.70 × 136,906.20
  4. Step 4: Simplify right side
    347,261.40x = 71,321,243,818.14
  5. Step 5: Solve for x
    x = 71,321,243,818.14/347,261.40
  6. Step 6: Final answer
    x = 205,382.01

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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.