Home / 389,367.10-537,441.51-228,257.02

Finding the Fourth Proportional to 389,367.10, 537,441.51 and 228,257.02

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Solution

The fourth proportional to 389,367.10, 537,441.51 and 228,257.02 is: 315,062.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,367.10 : 537,441.51 = 228,257.02 : x
  2. Step 2: Convert to fraction form
    389,367.10/537,441.51 = 228,257.02/x
  3. Step 3: Cross multiply
    389,367.10x = 537,441.51 × 228,257.02
  4. Step 4: Simplify right side
    389,367.10x = 122,674,797,496.90
  5. Step 5: Solve for x
    x = 122,674,797,496.90/389,367.10
  6. Step 6: Final answer
    x = 315,062.05

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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.