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Finding the Fourth Proportional to 352,418.40, 528,627.60 and 203,119.20

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Solution

The fourth proportional to 352,418.40, 528,627.60 and 203,119.20 is: 304,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,418.40 : 528,627.60 = 203,119.20 : x
  2. Step 2: Convert to fraction form
    352,418.40/528,627.60 = 203,119.20/x
  3. Step 3: Cross multiply
    352,418.40x = 528,627.60 × 203,119.20
  4. Step 4: Simplify right side
    352,418.40x = 107,374,415,209.92
  5. Step 5: Solve for x
    x = 107,374,415,209.92/352,418.40
  6. Step 6: Final answer
    x = 304,678.80

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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.