Home / 216,307.06-298,500.63-120,815.14

Finding the Fourth Proportional to 216,307.06, 298,500.63 and 120,815.14

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Solution

The fourth proportional to 216,307.06, 298,500.63 and 120,815.14 is: 166,723.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,307.06 : 298,500.63 = 120,815.14 : x
  2. Step 2: Convert to fraction form
    216,307.06/298,500.63 = 120,815.14/x
  3. Step 3: Cross multiply
    216,307.06x = 298,500.63 × 120,815.14
  4. Step 4: Simplify right side
    216,307.06x = 36,063,395,403.54
  5. Step 5: Solve for x
    x = 36,063,395,403.54/216,307.06
  6. Step 6: Final answer
    x = 166,723.15

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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.