Home / 216,892.09-299,268.55-136,272.91

Finding the Fourth Proportional to 216,892.09, 299,268.55 and 136,272.91

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Solution

The fourth proportional to 216,892.09, 299,268.55 and 136,272.91 is: 188,029.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,892.09 : 299,268.55 = 136,272.91 : x
  2. Step 2: Convert to fraction form
    216,892.09/299,268.55 = 136,272.91/x
  3. Step 3: Cross multiply
    216,892.09x = 299,268.55 × 136,272.91
  4. Step 4: Simplify right side
    216,892.09x = 40,782,194,938.32
  5. Step 5: Solve for x
    x = 40,782,194,938.32/216,892.09
  6. Step 6: Final answer
    x = 188,029.89

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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.