Home / 292,102.16-438,226.12-81,738.26

Finding the Fourth Proportional to 292,102.16, 438,226.12 and 81,738.26

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Solution

The fourth proportional to 292,102.16, 438,226.12 and 81,738.26 is: 122,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,102.16 : 438,226.12 = 81,738.26 : x
  2. Step 2: Convert to fraction form
    292,102.16/438,226.12 = 81,738.26/x
  3. Step 3: Cross multiply
    292,102.16x = 438,226.12 × 81,738.26
  4. Step 4: Simplify right side
    292,102.16x = 35,819,840,535.35
  5. Step 5: Solve for x
    x = 35,819,840,535.35/292,102.16
  6. Step 6: Final answer
    x = 122,627.78

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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.