Home / 216,002.38-298,083.47-120,509.09

Finding the Fourth Proportional to 216,002.38, 298,083.47 and 120,509.09

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Solution

The fourth proportional to 216,002.38, 298,083.47 and 120,509.09 is: 166,302.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,002.38 : 298,083.47 = 120,509.09 : x
  2. Step 2: Convert to fraction form
    216,002.38/298,083.47 = 120,509.09/x
  3. Step 3: Cross multiply
    216,002.38x = 298,083.47 × 120,509.09
  4. Step 4: Simplify right side
    216,002.38x = 35,921,767,713.74
  5. Step 5: Solve for x
    x = 35,921,767,713.74/216,002.38
  6. Step 6: Final answer
    x = 166,302.65

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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.