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Finding the Fourth Proportional to 251,620.76, 347,239.42 and 136,900.06

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Solution

The fourth proportional to 251,620.76, 347,239.42 and 136,900.06 is: 188,923.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,620.76 : 347,239.42 = 136,900.06 : x
  2. Step 2: Convert to fraction form
    251,620.76/347,239.42 = 136,900.06/x
  3. Step 3: Cross multiply
    251,620.76x = 347,239.42 × 136,900.06
  4. Step 4: Simplify right side
    251,620.76x = 47,537,096,222.02
  5. Step 5: Solve for x
    x = 47,537,096,222.02/251,620.76
  6. Step 6: Final answer
    x = 188,923.58

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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.