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Finding the Fourth Proportional to 219,804.40, 329,703.02 and 70,042.67

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Solution

The fourth proportional to 219,804.40, 329,703.02 and 70,042.67 is: 105,062.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,804.40 : 329,703.02 = 70,042.67 : x
  2. Step 2: Convert to fraction form
    219,804.40/329,703.02 = 70,042.67/x
  3. Step 3: Cross multiply
    219,804.40x = 329,703.02 × 70,042.67
  4. Step 4: Simplify right side
    219,804.40x = 23,093,279,827.86
  5. Step 5: Solve for x
    x = 23,093,279,827.86/219,804.40
  6. Step 6: Final answer
    x = 105,062.86

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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.