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Finding the Fourth Proportional to 219,804.42, 329,703.02 and 70,042.65

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Solution

The fourth proportional to 219,804.42, 329,703.02 and 70,042.65 is: 105,062.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,804.42 : 329,703.02 = 70,042.65 : x
  2. Step 2: Convert to fraction form
    219,804.42/329,703.02 = 70,042.65/x
  3. Step 3: Cross multiply
    219,804.42x = 329,703.02 × 70,042.65
  4. Step 4: Simplify right side
    219,804.42x = 23,093,273,233.80
  5. Step 5: Solve for x
    x = 23,093,273,233.80/219,804.42
  6. Step 6: Final answer
    x = 105,062.82

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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.