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Finding the Fourth Proportional to 219,819.80, 329,732.14 and 70,058.90

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Solution

The fourth proportional to 219,819.80, 329,732.14 and 70,058.90 is: 105,089.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,819.80 : 329,732.14 = 70,058.90 : x
  2. Step 2: Convert to fraction form
    219,819.80/329,732.14 = 70,058.90/x
  3. Step 3: Cross multiply
    219,819.80x = 329,732.14 × 70,058.90
  4. Step 4: Simplify right side
    219,819.80x = 23,100,671,023.05
  5. Step 5: Solve for x
    x = 23,100,671,023.05/219,819.80
  6. Step 6: Final answer
    x = 105,089.13

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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.