Home / 221,009.02-304,992.48-120,407.02

Finding the Fourth Proportional to 221,009.02, 304,992.48 and 120,407.02

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Solution

The fourth proportional to 221,009.02, 304,992.48 and 120,407.02 is: 166,161.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,009.02 : 304,992.48 = 120,407.02 : x
  2. Step 2: Convert to fraction form
    221,009.02/304,992.48 = 120,407.02/x
  3. Step 3: Cross multiply
    221,009.02x = 304,992.48 × 120,407.02
  4. Step 4: Simplify right side
    221,009.02x = 36,723,235,639.21
  5. Step 5: Solve for x
    x = 36,723,235,639.21/221,009.02
  6. Step 6: Final answer
    x = 166,161.71

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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.