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Finding the Fourth Proportional to 368,149.59, 552,087.65 and 128,201.87

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Solution

The fourth proportional to 368,149.59, 552,087.65 and 128,201.87 is: 192,255.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,149.59 : 552,087.65 = 128,201.87 : x
  2. Step 2: Convert to fraction form
    368,149.59/552,087.65 = 128,201.87/x
  3. Step 3: Cross multiply
    368,149.59x = 552,087.65 × 128,201.87
  4. Step 4: Simplify right side
    368,149.59x = 70,778,670,834.63
  5. Step 5: Solve for x
    x = 70,778,670,834.63/368,149.59
  6. Step 6: Final answer
    x = 192,255.19

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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.