Home / 389,282.28-537,209.96-228,105.24

Finding the Fourth Proportional to 389,282.28, 537,209.96 and 228,105.24

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Solution

The fourth proportional to 389,282.28, 537,209.96 and 228,105.24 is: 314,785.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,282.28 : 537,209.96 = 228,105.24 : x
  2. Step 2: Convert to fraction form
    389,282.28/537,209.96 = 228,105.24/x
  3. Step 3: Cross multiply
    389,282.28x = 537,209.96 × 228,105.24
  4. Step 4: Simplify right side
    389,282.28x = 122,540,406,856.19
  5. Step 5: Solve for x
    x = 122,540,406,856.19/389,282.28
  6. Step 6: Final answer
    x = 314,785.47

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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.