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Finding the Fourth Proportional to 219,738, 329,411.52 and 79,465.44

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Solution

The fourth proportional to 219,738, 329,411.52 and 79,465.44 is: 119,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,738 : 329,411.52 = 79,465.44 : x
  2. Step 2: Convert to fraction form
    219,738/329,411.52 = 79,465.44/x
  3. Step 3: Cross multiply
    219,738x = 329,411.52 × 79,465.44
  4. Step 4: Simplify right side
    219,738x = 26,176,831,377.87
  5. Step 5: Solve for x
    x = 26,176,831,377.87/219,738
  6. Step 6: Final answer
    x = 119,127.47

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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.