Home / 389,366.10-537,440.13-228,256.02

Finding the Fourth Proportional to 389,366.10, 537,440.13 and 228,256.02

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Solution

The fourth proportional to 389,366.10, 537,440.13 and 228,256.02 is: 315,060.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,366.10 : 537,440.13 = 228,256.02 : x
  2. Step 2: Convert to fraction form
    389,366.10/537,440.13 = 228,256.02/x
  3. Step 3: Cross multiply
    389,366.10x = 537,440.13 × 228,256.02
  4. Step 4: Simplify right side
    389,366.10x = 122,673,945,062.08
  5. Step 5: Solve for x
    x = 122,673,945,062.08/389,366.10
  6. Step 6: Final answer
    x = 315,060.67

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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.