Home / 291,922.07-403,080.50-228,440.75

Finding the Fourth Proportional to 291,922.07, 403,080.50 and 228,440.75

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Solution

The fourth proportional to 291,922.07, 403,080.50 and 228,440.75 is: 315,426.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,922.07 : 403,080.50 = 228,440.75 : x
  2. Step 2: Convert to fraction form
    291,922.07/403,080.50 = 228,440.75/x
  3. Step 3: Cross multiply
    291,922.07x = 403,080.50 × 228,440.75
  4. Step 4: Simplify right side
    291,922.07x = 92,080,011,595.87
  5. Step 5: Solve for x
    x = 92,080,011,595.87/291,922.07
  6. Step 6: Final answer
    x = 315,426.68

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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.