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Finding the Fourth Proportional to 348,012.80, 522,067.80 and 148,331.60

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Solution

The fourth proportional to 348,012.80, 522,067.80 and 148,331.60 is: 222,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,012.80 : 522,067.80 = 148,331.60 : x
  2. Step 2: Convert to fraction form
    348,012.80/522,067.80 = 148,331.60/x
  3. Step 3: Cross multiply
    348,012.80x = 522,067.80 × 148,331.60
  4. Step 4: Simplify right side
    348,012.80x = 77,439,152,082.48
  5. Step 5: Solve for x
    x = 77,439,152,082.48/348,012.80
  6. Step 6: Final answer
    x = 222,518.11

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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.