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Finding the Fourth Proportional to 343,600.92, 515,275.02 and 118,903.68

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Solution

The fourth proportional to 343,600.92, 515,275.02 and 118,903.68 is: 178,311.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,600.92 : 515,275.02 = 118,903.68 : x
  2. Step 2: Convert to fraction form
    343,600.92/515,275.02 = 118,903.68/x
  3. Step 3: Cross multiply
    343,600.92x = 515,275.02 × 118,903.68
  4. Step 4: Simplify right side
    343,600.92x = 61,268,096,090.07
  5. Step 5: Solve for x
    x = 61,268,096,090.07/343,600.92
  6. Step 6: Final answer
    x = 178,311.79

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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.