Home / 389,366.60-537,440.82-228,256.52

Finding the Fourth Proportional to 389,366.60, 537,440.82 and 228,256.52

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Solution

The fourth proportional to 389,366.60, 537,440.82 and 228,256.52 is: 315,061.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,366.60 : 537,440.82 = 228,256.52 : x
  2. Step 2: Convert to fraction form
    389,366.60/537,440.82 = 228,256.52/x
  3. Step 3: Cross multiply
    389,366.60x = 537,440.82 × 228,256.52
  4. Step 4: Simplify right side
    389,366.60x = 122,674,371,279.15
  5. Step 5: Solve for x
    x = 122,674,371,279.15/389,366.60
  6. Step 6: Final answer
    x = 315,061.36

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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.