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Finding the Fourth Proportional to 352,842.40, 528,649.20 and 228,119.20

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Solution

The fourth proportional to 352,842.40, 528,649.20 and 228,119.20 is: 341,781.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,842.40 : 528,649.20 = 228,119.20 : x
  2. Step 2: Convert to fraction form
    352,842.40/528,649.20 = 228,119.20/x
  3. Step 3: Cross multiply
    352,842.40x = 528,649.20 × 228,119.20
  4. Step 4: Simplify right side
    352,842.40x = 120,595,032,584.64
  5. Step 5: Solve for x
    x = 120,595,032,584.64/352,842.40
  6. Step 6: Final answer
    x = 341,781.58

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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.