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Finding the Fourth Proportional to 250,580.74, 345,803.89 and 135,859.07

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Solution

The fourth proportional to 250,580.74, 345,803.89 and 135,859.07 is: 187,486.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,580.74 : 345,803.89 = 135,859.07 : x
  2. Step 2: Convert to fraction form
    250,580.74/345,803.89 = 135,859.07/x
  3. Step 3: Cross multiply
    250,580.74x = 345,803.89 × 135,859.07
  4. Step 4: Simplify right side
    250,580.74x = 46,980,594,897.78
  5. Step 5: Solve for x
    x = 46,980,594,897.78/250,580.74
  6. Step 6: Final answer
    x = 187,486.86

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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.