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Finding the Fourth Proportional to 251,469.36, 347,031.95 and 144,048.78

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Solution

The fourth proportional to 251,469.36, 347,031.95 and 144,048.78 is: 198,789.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,469.36 : 347,031.95 = 144,048.78 : x
  2. Step 2: Convert to fraction form
    251,469.36/347,031.95 = 144,048.78/x
  3. Step 3: Cross multiply
    251,469.36x = 347,031.95 × 144,048.78
  4. Step 4: Simplify right side
    251,469.36x = 49,989,528,298.28
  5. Step 5: Solve for x
    x = 49,989,528,298.28/251,469.36
  6. Step 6: Final answer
    x = 198,789.74

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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.