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Finding the Fourth Proportional to 250,484.50, 345,631.05 and 143,031.72

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Solution

The fourth proportional to 250,484.50, 345,631.05 and 143,031.72 is: 197,362.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,484.50 : 345,631.05 = 143,031.72 : x
  2. Step 2: Convert to fraction form
    250,484.50/345,631.05 = 143,031.72/x
  3. Step 3: Cross multiply
    250,484.50x = 345,631.05 × 143,031.72
  4. Step 4: Simplify right side
    250,484.50x = 49,436,204,863.02
  5. Step 5: Solve for x
    x = 49,436,204,863.02/250,484.50
  6. Step 6: Final answer
    x = 197,362.33

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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.