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Finding the Fourth Proportional to 253,576.50, 349,946.51 and 140,399.25

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Solution

The fourth proportional to 253,576.50, 349,946.51 and 140,399.25 is: 193,757.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,576.50 : 349,946.51 = 140,399.25 : x
  2. Step 2: Convert to fraction form
    253,576.50/349,946.51 = 140,399.25/x
  3. Step 3: Cross multiply
    253,576.50x = 349,946.51 × 140,399.25
  4. Step 4: Simplify right side
    253,576.50x = 49,132,226,842.12
  5. Step 5: Solve for x
    x = 49,132,226,842.12/253,576.50
  6. Step 6: Final answer
    x = 193,757.02

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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.