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Finding the Fourth Proportional to 219,878.43, 303,439.01 and 124,383.21

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Solution

The fourth proportional to 219,878.43, 303,439.01 and 124,383.21 is: 171,652.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,878.43 : 303,439.01 = 124,383.21 : x
  2. Step 2: Convert to fraction form
    219,878.43/303,439.01 = 124,383.21/x
  3. Step 3: Cross multiply
    219,878.43x = 303,439.01 × 124,383.21
  4. Step 4: Simplify right side
    219,878.43x = 37,742,717,481.11
  5. Step 5: Solve for x
    x = 37,742,717,481.11/219,878.43
  6. Step 6: Final answer
    x = 171,652.66

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1.5x scale

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.