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Finding the Fourth Proportional to 253,805.52, 350,120.60 and 172,106.15

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Solution

The fourth proportional to 253,805.52, 350,120.60 and 172,106.15 is: 237,417.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,805.52 : 350,120.60 = 172,106.15 : x
  2. Step 2: Convert to fraction form
    253,805.52/350,120.60 = 172,106.15/x
  3. Step 3: Cross multiply
    253,805.52x = 350,120.60 × 172,106.15
  4. Step 4: Simplify right side
    253,805.52x = 60,257,905,890.56
  5. Step 5: Solve for x
    x = 60,257,905,890.56/253,805.52
  6. Step 6: Final answer
    x = 237,417.63

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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.