Home / 389,336.12-537,182.10-228,104.60

Finding the Fourth Proportional to 389,336.12, 537,182.10 and 228,104.60

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Solution

The fourth proportional to 389,336.12, 537,182.10 and 228,104.60 is: 314,724.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,336.12 : 537,182.10 = 228,104.60 : x
  2. Step 2: Convert to fraction form
    389,336.12/537,182.10 = 228,104.60/x
  3. Step 3: Cross multiply
    389,336.12x = 537,182.10 × 228,104.60
  4. Step 4: Simplify right side
    389,336.12x = 122,533,708,047.66
  5. Step 5: Solve for x
    x = 122,533,708,047.66/389,336.12
  6. Step 6: Final answer
    x = 314,724.74

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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.