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Finding the Fourth Proportional to 340,388.31, 509,966.56 and 245,102.61

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Solution

The fourth proportional to 340,388.31, 509,966.56 and 245,102.61 is: 367,210.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,388.31 : 509,966.56 = 245,102.61 : x
  2. Step 2: Convert to fraction form
    340,388.31/509,966.56 = 245,102.61/x
  3. Step 3: Cross multiply
    340,388.31x = 509,966.56 × 245,102.61
  4. Step 4: Simplify right side
    340,388.31x = 124,994,134,868.72
  5. Step 5: Solve for x
    x = 124,994,134,868.72/340,388.31
  6. Step 6: Final answer
    x = 367,210.42

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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.