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Finding the Fourth Proportional to 402,922.20, 604,383.30 and 242,563.80

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Solution

The fourth proportional to 402,922.20, 604,383.30 and 242,563.80 is: 363,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,922.20 : 604,383.30 = 242,563.80 : x
  2. Step 2: Convert to fraction form
    402,922.20/604,383.30 = 242,563.80/x
  3. Step 3: Cross multiply
    402,922.20x = 604,383.30 × 242,563.80
  4. Step 4: Simplify right side
    402,922.20x = 146,601,509,904.54
  5. Step 5: Solve for x
    x = 146,601,509,904.54/402,922.20
  6. Step 6: Final answer
    x = 363,845.70

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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.