Home / 221,303.12-331,784.53-114,572.66

Finding the Fourth Proportional to 221,303.12, 331,784.53 and 114,572.66

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Solution

The fourth proportional to 221,303.12, 331,784.53 and 114,572.66 is: 171,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,303.12 : 331,784.53 = 114,572.66 : x
  2. Step 2: Convert to fraction form
    221,303.12/331,784.53 = 114,572.66/x
  3. Step 3: Cross multiply
    221,303.12x = 331,784.53 × 114,572.66
  4. Step 4: Simplify right side
    221,303.12x = 38,013,434,203.60
  5. Step 5: Solve for x
    x = 38,013,434,203.60/221,303.12
  6. Step 6: Final answer
    x = 171,770.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.