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Finding the Fourth Proportional to 340,771.47, 510,831.37 and 127,481.46

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Solution

The fourth proportional to 340,771.47, 510,831.37 and 127,481.46 is: 191,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,771.47 : 510,831.37 = 127,481.46 : x
  2. Step 2: Convert to fraction form
    340,771.47/510,831.37 = 127,481.46/x
  3. Step 3: Cross multiply
    340,771.47x = 510,831.37 × 127,481.46
  4. Step 4: Simplify right side
    340,771.47x = 65,121,528,861.40
  5. Step 5: Solve for x
    x = 65,121,528,861.40/340,771.47
  6. Step 6: Final answer
    x = 191,100.30

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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.