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Finding the Fourth Proportional to 236,937.98, 355,469.28 and 85,150.40

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Solution

The fourth proportional to 236,937.98, 355,469.28 and 85,150.40 is: 127,747.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,937.98 : 355,469.28 = 85,150.40 : x
  2. Step 2: Convert to fraction form
    236,937.98/355,469.28 = 85,150.40/x
  3. Step 3: Cross multiply
    236,937.98x = 355,469.28 × 85,150.40
  4. Step 4: Simplify right side
    236,937.98x = 30,268,349,602.37
  5. Step 5: Solve for x
    x = 30,268,349,602.37/236,937.98
  6. Step 6: Final answer
    x = 127,747.99

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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.