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Finding the Fourth Proportional to 402,995.89, 603,995.57 and 203,373.37

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Solution

The fourth proportional to 402,995.89, 603,995.57 and 203,373.37 is: 304,808.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,995.89 : 603,995.57 = 203,373.37 : x
  2. Step 2: Convert to fraction form
    402,995.89/603,995.57 = 203,373.37/x
  3. Step 3: Cross multiply
    402,995.89x = 603,995.57 × 203,373.37
  4. Step 4: Simplify right side
    402,995.89x = 122,836,610,499.13
  5. Step 5: Solve for x
    x = 122,836,610,499.13/402,995.89
  6. Step 6: Final answer
    x = 304,808.60

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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.