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Finding the Fourth Proportional to 253,600.71, 349,968.96 and 140,423.46

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Solution

The fourth proportional to 253,600.71, 349,968.96 and 140,423.46 is: 193,784.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,600.71 : 349,968.96 = 140,423.46 : x
  2. Step 2: Convert to fraction form
    253,600.71/349,968.96 = 140,423.46/x
  3. Step 3: Cross multiply
    253,600.71x = 349,968.96 × 140,423.46
  4. Step 4: Simplify right side
    253,600.71x = 49,143,852,255.80
  5. Step 5: Solve for x
    x = 49,143,852,255.80/253,600.71
  6. Step 6: Final answer
    x = 193,784.36

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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.