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Finding the Fourth Proportional to 257,362.56, 355,259.52 and 250,260.48

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Solution

The fourth proportional to 257,362.56, 355,259.52 and 250,260.48 is: 345,455.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,362.56 : 355,259.52 = 250,260.48 : x
  2. Step 2: Convert to fraction form
    257,362.56/355,259.52 = 250,260.48/x
  3. Step 3: Cross multiply
    257,362.56x = 355,259.52 × 250,260.48
  4. Step 4: Simplify right side
    257,362.56x = 88,907,417,999.77
  5. Step 5: Solve for x
    x = 88,907,417,999.77/257,362.56
  6. Step 6: Final answer
    x = 345,455.91

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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.