Home / 291,822.80-437,734.20-81,460.40

Finding the Fourth Proportional to 291,822.80, 437,734.20 and 81,460.40

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Solution

The fourth proportional to 291,822.80, 437,734.20 and 81,460.40 is: 122,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,822.80 : 437,734.20 = 81,460.40 : x
  2. Step 2: Convert to fraction form
    291,822.80/437,734.20 = 81,460.40/x
  3. Step 3: Cross multiply
    291,822.80x = 437,734.20 × 81,460.40
  4. Step 4: Simplify right side
    291,822.80x = 35,658,003,025.68
  5. Step 5: Solve for x
    x = 35,658,003,025.68/291,822.80
  6. Step 6: Final answer
    x = 122,190.60

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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.