Home / 445,835.34-668,238-205,446.60

Finding the Fourth Proportional to 445,835.34, 668,238 and 205,446.60

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Solution

The fourth proportional to 445,835.34, 668,238 and 205,446.60 is: 307,932.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,835.34 : 668,238 = 205,446.60 : x
  2. Step 2: Convert to fraction form
    445,835.34/668,238 = 205,446.60/x
  3. Step 3: Cross multiply
    445,835.34x = 668,238 × 205,446.60
  4. Step 4: Simplify right side
    445,835.34x = 137,287,225,090.80
  5. Step 5: Solve for x
    x = 137,287,225,090.80/445,835.34
  6. Step 6: Final answer
    x = 307,932.58

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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.