Home / 389,365.60-537,439.44-228,255.52

Finding the Fourth Proportional to 389,365.60, 537,439.44 and 228,255.52

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Solution

The fourth proportional to 389,365.60, 537,439.44 and 228,255.52 is: 315,059.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,365.60 : 537,439.44 = 228,255.52 : x
  2. Step 2: Convert to fraction form
    389,365.60/537,439.44 = 228,255.52/x
  3. Step 3: Cross multiply
    389,365.60x = 537,439.44 × 228,255.52
  4. Step 4: Simplify right side
    389,365.60x = 122,673,518,845.71
  5. Step 5: Solve for x
    x = 122,673,518,845.71/389,365.60
  6. Step 6: Final answer
    x = 315,059.98

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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.