Home / 352,123.20-529,221.60-345,902.40

Finding the Fourth Proportional to 352,123.20, 529,221.60 and 345,902.40

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Solution

The fourth proportional to 352,123.20, 529,221.60 and 345,902.40 is: 519,872.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,123.20 : 529,221.60 = 345,902.40 : x
  2. Step 2: Convert to fraction form
    352,123.20/529,221.60 = 345,902.40/x
  3. Step 3: Cross multiply
    352,123.20x = 529,221.60 × 345,902.40
  4. Step 4: Simplify right side
    352,123.20x = 183,059,021,571.84
  5. Step 5: Solve for x
    x = 183,059,021,571.84/352,123.20
  6. Step 6: Final answer
    x = 519,872.08

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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.