Home / 348,736.20-522,974.70-138,330.60

Finding the Fourth Proportional to 348,736.20, 522,974.70 and 138,330.60

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Solution

The fourth proportional to 348,736.20, 522,974.70 and 138,330.60 is: 207,444.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,736.20 : 522,974.70 = 138,330.60 : x
  2. Step 2: Convert to fraction form
    348,736.20/522,974.70 = 138,330.60/x
  3. Step 3: Cross multiply
    348,736.20x = 522,974.70 × 138,330.60
  4. Step 4: Simplify right side
    348,736.20x = 72,343,404,035.82
  5. Step 5: Solve for x
    x = 72,343,404,035.82/348,736.20
  6. Step 6: Final answer
    x = 207,444.49

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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.