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Finding the Fourth Proportional to 310,562.78, 428,574.06 and 174,597.32

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Solution

The fourth proportional to 310,562.78, 428,574.06 and 174,597.32 is: 240,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,562.78 : 428,574.06 = 174,597.32 : x
  2. Step 2: Convert to fraction form
    310,562.78/428,574.06 = 174,597.32/x
  3. Step 3: Cross multiply
    310,562.78x = 428,574.06 × 174,597.32
  4. Step 4: Simplify right side
    310,562.78x = 74,827,882,297.52
  5. Step 5: Solve for x
    x = 74,827,882,297.52/310,562.78
  6. Step 6: Final answer
    x = 240,942.85

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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.