Home / 216,933.33-299,339.87-121,440.10

Finding the Fourth Proportional to 216,933.33, 299,339.87 and 121,440.10

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Solution

The fourth proportional to 216,933.33, 299,339.87 and 121,440.10 is: 167,571.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,933.33 : 299,339.87 = 121,440.10 : x
  2. Step 2: Convert to fraction form
    216,933.33/299,339.87 = 121,440.10/x
  3. Step 3: Cross multiply
    216,933.33x = 299,339.87 × 121,440.10
  4. Step 4: Simplify right side
    216,933.33x = 36,351,863,746.79
  5. Step 5: Solve for x
    x = 36,351,863,746.79/216,933.33
  6. Step 6: Final answer
    x = 167,571.59

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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.