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Finding the Fourth Proportional to 253,841.78, 350,303.73 and 140,666.42

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Solution

The fourth proportional to 253,841.78, 350,303.73 and 140,666.42 is: 194,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,841.78 : 350,303.73 = 140,666.42 : x
  2. Step 2: Convert to fraction form
    253,841.78/350,303.73 = 140,666.42/x
  3. Step 3: Cross multiply
    253,841.78x = 350,303.73 × 140,666.42
  4. Step 4: Simplify right side
    253,841.78x = 49,275,971,611.75
  5. Step 5: Solve for x
    x = 49,275,971,611.75/253,841.78
  6. Step 6: Final answer
    x = 194,120.81

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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.