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Finding the Fourth Proportional to 217,603.96, 300,277.49 and 120,813.41

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Solution

The fourth proportional to 217,603.96, 300,277.49 and 120,813.41 is: 166,713.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,603.96 : 300,277.49 = 120,813.41 : x
  2. Step 2: Convert to fraction form
    217,603.96/300,277.49 = 120,813.41/x
  3. Step 3: Cross multiply
    217,603.96x = 300,277.49 × 120,813.41
  4. Step 4: Simplify right side
    217,603.96x = 36,277,547,659.77
  5. Step 5: Solve for x
    x = 36,277,547,659.77/217,603.96
  6. Step 6: Final answer
    x = 166,713.64

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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.