Home / 216,823.74-299,229.30-121,329.60

Finding the Fourth Proportional to 216,823.74, 299,229.30 and 121,329.60

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Solution

The fourth proportional to 216,823.74, 299,229.30 and 121,329.60 is: 167,441.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,823.74 : 299,229.30 = 121,329.60 : x
  2. Step 2: Convert to fraction form
    216,823.74/299,229.30 = 121,329.60/x
  3. Step 3: Cross multiply
    216,823.74x = 299,229.30 × 121,329.60
  4. Step 4: Simplify right side
    216,823.74x = 36,305,371,277.28
  5. Step 5: Solve for x
    x = 36,305,371,277.28/216,823.74
  6. Step 6: Final answer
    x = 167,441.86

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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.