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Finding the Fourth Proportional to 219,871.44, 303,429.36 and 124,376.40

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Solution

The fourth proportional to 219,871.44, 303,429.36 and 124,376.40 is: 171,643.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,871.44 : 303,429.36 = 124,376.40 : x
  2. Step 2: Convert to fraction form
    219,871.44/303,429.36 = 124,376.40/x
  3. Step 3: Cross multiply
    219,871.44x = 303,429.36 × 124,376.40
  4. Step 4: Simplify right side
    219,871.44x = 37,739,451,451.10
  5. Step 5: Solve for x
    x = 37,739,451,451.10/219,871.44
  6. Step 6: Final answer
    x = 171,643.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.