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Finding the Fourth Proportional to 257,627.00, 355,495.68 and 148,730.90

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Solution

The fourth proportional to 257,627.00, 355,495.68 and 148,730.90 is: 205,231.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,627.00 : 355,495.68 = 148,730.90 : x
  2. Step 2: Convert to fraction form
    257,627.00/355,495.68 = 148,730.90/x
  3. Step 3: Cross multiply
    257,627.00x = 355,495.68 × 148,730.90
  4. Step 4: Simplify right side
    257,627.00x = 52,873,190,655.03
  5. Step 5: Solve for x
    x = 52,873,190,655.03/257,627.00
  6. Step 6: Final answer
    x = 205,231.56

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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.