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Finding the Fourth Proportional to 251,873.10, 377,809.65 and 219,068.10

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Solution

The fourth proportional to 251,873.10, 377,809.65 and 219,068.10 is: 328,602.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,873.10 : 377,809.65 = 219,068.10 : x
  2. Step 2: Convert to fraction form
    251,873.10/377,809.65 = 219,068.10/x
  3. Step 3: Cross multiply
    251,873.10x = 377,809.65 × 219,068.10
  4. Step 4: Simplify right side
    251,873.10x = 82,766,042,187.17
  5. Step 5: Solve for x
    x = 82,766,042,187.17/251,873.10
  6. Step 6: Final answer
    x = 328,602.15

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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.