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Finding the Fourth Proportional to 219,077.40, 328,745.70 and 159,763.80

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Solution

The fourth proportional to 219,077.40, 328,745.70 and 159,763.80 is: 239,740.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,077.40 : 328,745.70 = 159,763.80 : x
  2. Step 2: Convert to fraction form
    219,077.40/328,745.70 = 159,763.80/x
  3. Step 3: Cross multiply
    219,077.40x = 328,745.70 × 159,763.80
  4. Step 4: Simplify right side
    219,077.40x = 52,521,662,265.66
  5. Step 5: Solve for x
    x = 52,521,662,265.66/219,077.40
  6. Step 6: Final answer
    x = 239,740.21

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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.