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Finding the Fourth Proportional to 402,933.60, 603,709.20 and 192,117.60

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Solution

The fourth proportional to 402,933.60, 603,709.20 and 192,117.60 is: 287,846.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,933.60 : 603,709.20 = 192,117.60 : x
  2. Step 2: Convert to fraction form
    402,933.60/603,709.20 = 192,117.60/x
  3. Step 3: Cross multiply
    402,933.60x = 603,709.20 × 192,117.60
  4. Step 4: Simplify right side
    402,933.60x = 115,983,162,601.92
  5. Step 5: Solve for x
    x = 115,983,162,601.92/402,933.60
  6. Step 6: Final answer
    x = 287,846.84

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1.5x scale

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.