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Finding the Fourth Proportional to 310,846.83, 428,967.96 and 174,880.87

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Solution

The fourth proportional to 310,846.83, 428,967.96 and 174,880.87 is: 241,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,846.83 : 428,967.96 = 174,880.87 : x
  2. Step 2: Convert to fraction form
    310,846.83/428,967.96 = 174,880.87/x
  3. Step 3: Cross multiply
    310,846.83x = 428,967.96 × 174,880.87
  4. Step 4: Simplify right side
    310,846.83x = 75,018,290,046.93
  5. Step 5: Solve for x
    x = 75,018,290,046.93/310,846.83
  6. Step 6: Final answer
    x = 241,335.23

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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.