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Finding the Fourth Proportional to 352,232.80, 528,349.20 and 285,877.60

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Solution

The fourth proportional to 352,232.80, 528,349.20 and 285,877.60 is: 428,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,232.80 : 528,349.20 = 285,877.60 : x
  2. Step 2: Convert to fraction form
    352,232.80/528,349.20 = 285,877.60/x
  3. Step 3: Cross multiply
    352,232.80x = 528,349.20 × 285,877.60
  4. Step 4: Simplify right side
    352,232.80x = 151,043,201,257.92
  5. Step 5: Solve for x
    x = 151,043,201,257.92/352,232.80
  6. Step 6: Final answer
    x = 428,816.40

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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.