Home / 217,638.47-300,341.68-120,842.52

Finding the Fourth Proportional to 217,638.47, 300,341.68 and 120,842.52

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Solution

The fourth proportional to 217,638.47, 300,341.68 and 120,842.52 is: 166,763.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,638.47 : 300,341.68 = 120,842.52 : x
  2. Step 2: Convert to fraction form
    217,638.47/300,341.68 = 120,842.52/x
  3. Step 3: Cross multiply
    217,638.47x = 300,341.68 × 120,842.52
  4. Step 4: Simplify right side
    217,638.47x = 36,294,043,976.05
  5. Step 5: Solve for x
    x = 36,294,043,976.05/217,638.47
  6. Step 6: Final answer
    x = 166,763.00

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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.