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Finding the Fourth Proportional to 219,735.18, 329,602.77 and 79,461

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Solution

The fourth proportional to 219,735.18, 329,602.77 and 79,461 is: 119,191.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,735.18 : 329,602.77 = 79,461 : x
  2. Step 2: Convert to fraction form
    219,735.18/329,602.77 = 79,461/x
  3. Step 3: Cross multiply
    219,735.18x = 329,602.77 × 79,461
  4. Step 4: Simplify right side
    219,735.18x = 26,190,565,706.97
  5. Step 5: Solve for x
    x = 26,190,565,706.97/219,735.18
  6. Step 6: Final answer
    x = 119,191.50

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1.5x scale

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.