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Finding the Fourth Proportional to 257,054.70, 354,625.58 and 155,022.15

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Solution

The fourth proportional to 257,054.70, 354,625.58 and 155,022.15 is: 213,864.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,054.70 : 354,625.58 = 155,022.15 : x
  2. Step 2: Convert to fraction form
    257,054.70/354,625.58 = 155,022.15/x
  3. Step 3: Cross multiply
    257,054.70x = 354,625.58 × 155,022.15
  4. Step 4: Simplify right side
    257,054.70x = 54,974,821,356.00
  5. Step 5: Solve for x
    x = 54,974,821,356.00/257,054.70
  6. Step 6: Final answer
    x = 213,864.29

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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.