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Finding the Fourth Proportional to 257,233.80, 385,850.70 and 162,755.40

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Solution

The fourth proportional to 257,233.80, 385,850.70 and 162,755.40 is: 244,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,233.80 : 385,850.70 = 162,755.40 : x
  2. Step 2: Convert to fraction form
    257,233.80/385,850.70 = 162,755.40/x
  3. Step 3: Cross multiply
    257,233.80x = 385,850.70 × 162,755.40
  4. Step 4: Simplify right side
    257,233.80x = 62,799,285,018.78
  5. Step 5: Solve for x
    x = 62,799,285,018.78/257,233.80
  6. Step 6: Final answer
    x = 244,133.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.