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Finding the Fourth Proportional to 253,597.52, 349,975.13 and 140,420.27

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Solution

The fourth proportional to 253,597.52, 349,975.13 and 140,420.27 is: 193,785.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,597.52 : 349,975.13 = 140,420.27 : x
  2. Step 2: Convert to fraction form
    253,597.52/349,975.13 = 140,420.27/x
  3. Step 3: Cross multiply
    253,597.52x = 349,975.13 × 140,420.27
  4. Step 4: Simplify right side
    253,597.52x = 49,143,599,795.91
  5. Step 5: Solve for x
    x = 49,143,599,795.91/253,597.52
  6. Step 6: Final answer
    x = 193,785.81

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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.