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Finding the Fourth Proportional to 257,591.70, 355,485.78 and 150,144.39

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Solution

The fourth proportional to 257,591.70, 355,485.78 and 150,144.39 is: 207,204.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,591.70 : 355,485.78 = 150,144.39 : x
  2. Step 2: Convert to fraction form
    257,591.70/355,485.78 = 150,144.39/x
  3. Step 3: Cross multiply
    257,591.70x = 355,485.78 × 150,144.39
  4. Step 4: Simplify right side
    257,591.70x = 53,374,195,591.77
  5. Step 5: Solve for x
    x = 53,374,195,591.77/257,591.70
  6. Step 6: Final answer
    x = 207,204.64

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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.