Home / 216,509.08-324,776.91-83,389.73

Finding the Fourth Proportional to 216,509.08, 324,776.91 and 83,389.73

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Solution

The fourth proportional to 216,509.08, 324,776.91 and 83,389.73 is: 125,089.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,509.08 : 324,776.91 = 83,389.73 : x
  2. Step 2: Convert to fraction form
    216,509.08/324,776.91 = 83,389.73/x
  3. Step 3: Cross multiply
    216,509.08x = 324,776.91 × 83,389.73
  4. Step 4: Simplify right side
    216,509.08x = 27,083,058,881.76
  5. Step 5: Solve for x
    x = 27,083,058,881.76/216,509.08
  6. Step 6: Final answer
    x = 125,089.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.