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Finding the Fourth Proportional to 372,255.36, 513,717.84 and 228,930.72

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Solution

The fourth proportional to 372,255.36, 513,717.84 and 228,930.72 is: 315,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,255.36 : 513,717.84 = 228,930.72 : x
  2. Step 2: Convert to fraction form
    372,255.36/513,717.84 = 228,930.72/x
  3. Step 3: Cross multiply
    372,255.36x = 513,717.84 × 228,930.72
  4. Step 4: Simplify right side
    372,255.36x = 117,605,794,988.05
  5. Step 5: Solve for x
    x = 117,605,794,988.05/372,255.36
  6. Step 6: Final answer
    x = 315,927.74

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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.