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Finding the Fourth Proportional to 348,314.78, 522,478.62 and 99,003.26

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Solution

The fourth proportional to 348,314.78, 522,478.62 and 99,003.26 is: 148,506.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,314.78 : 522,478.62 = 99,003.26 : x
  2. Step 2: Convert to fraction form
    348,314.78/522,478.62 = 99,003.26/x
  3. Step 3: Cross multiply
    348,314.78x = 522,478.62 × 99,003.26
  4. Step 4: Simplify right side
    348,314.78x = 51,727,086,660.30
  5. Step 5: Solve for x
    x = 51,727,086,660.30/348,314.78
  6. Step 6: Final answer
    x = 148,506.72

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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.