Home / 216,281.31-298,465.07-120,789.33

Finding the Fourth Proportional to 216,281.31, 298,465.07 and 120,789.33

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Solution

The fourth proportional to 216,281.31, 298,465.07 and 120,789.33 is: 166,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,281.31 : 298,465.07 = 120,789.33 : x
  2. Step 2: Convert to fraction form
    216,281.31/298,465.07 = 120,789.33/x
  3. Step 3: Cross multiply
    216,281.31x = 298,465.07 × 120,789.33
  4. Step 4: Simplify right side
    216,281.31x = 36,051,395,229.76
  5. Step 5: Solve for x
    x = 36,051,395,229.76/216,281.31
  6. Step 6: Final answer
    x = 166,687.52

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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.