Home / 216,837.54-299,258.55-121,367.70

Finding the Fourth Proportional to 216,837.54, 299,258.55 and 121,367.70

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Solution

The fourth proportional to 216,837.54, 299,258.55 and 121,367.70 is: 167,500.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,837.54 : 299,258.55 = 121,367.70 : x
  2. Step 2: Convert to fraction form
    216,837.54/299,258.55 = 121,367.70/x
  3. Step 3: Cross multiply
    216,837.54x = 299,258.55 × 121,367.70
  4. Step 4: Simplify right side
    216,837.54x = 36,320,321,918.84
  5. Step 5: Solve for x
    x = 36,320,321,918.84/216,837.54
  6. Step 6: Final answer
    x = 167,500.16

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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.