Home / 330,860.66-456,222.98-228,708.78

Finding the Fourth Proportional to 330,860.66, 456,222.98 and 228,708.78

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Solution

The fourth proportional to 330,860.66, 456,222.98 and 228,708.78 is: 315,366.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,860.66 : 456,222.98 = 228,708.78 : x
  2. Step 2: Convert to fraction form
    330,860.66/456,222.98 = 228,708.78/x
  3. Step 3: Cross multiply
    330,860.66x = 456,222.98 × 228,708.78
  4. Step 4: Simplify right side
    330,860.66x = 104,342,200,024.70
  5. Step 5: Solve for x
    x = 104,342,200,024.70/330,860.66
  6. Step 6: Final answer
    x = 315,366.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.