Home / 402,199.20-603,298.23-102,679.78

Finding the Fourth Proportional to 402,199.20, 603,298.23 and 102,679.78

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Solution

The fourth proportional to 402,199.20, 603,298.23 and 102,679.78 is: 154,019.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,199.20 : 603,298.23 = 102,679.78 : x
  2. Step 2: Convert to fraction form
    402,199.20/603,298.23 = 102,679.78/x
  3. Step 3: Cross multiply
    402,199.20x = 603,298.23 × 102,679.78
  4. Step 4: Simplify right side
    402,199.20x = 61,946,529,530.79
  5. Step 5: Solve for x
    x = 61,946,529,530.79/402,199.20
  6. Step 6: Final answer
    x = 154,019.52

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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.