Home / 381,557.40-526,399.37-228,602.04

Finding the Fourth Proportional to 381,557.40, 526,399.37 and 228,602.04

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Solution

The fourth proportional to 381,557.40, 526,399.37 and 228,602.04 is: 315,381.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,557.40 : 526,399.37 = 228,602.04 : x
  2. Step 2: Convert to fraction form
    381,557.40/526,399.37 = 228,602.04/x
  3. Step 3: Cross multiply
    381,557.40x = 526,399.37 × 228,602.04
  4. Step 4: Simplify right side
    381,557.40x = 120,335,969,836.72
  5. Step 5: Solve for x
    x = 120,335,969,836.72/381,557.40
  6. Step 6: Final answer
    x = 315,381.04

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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.