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Finding the Fourth Proportional to 366,345.40, 505,729.80 and 245,565.58

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Solution

The fourth proportional to 366,345.40, 505,729.80 and 245,565.58 is: 338,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,345.40 : 505,729.80 = 245,565.58 : x
  2. Step 2: Convert to fraction form
    366,345.40/505,729.80 = 245,565.58/x
  3. Step 3: Cross multiply
    366,345.40x = 505,729.80 × 245,565.58
  4. Step 4: Simplify right side
    366,345.40x = 124,189,831,660.28
  5. Step 5: Solve for x
    x = 124,189,831,660.28/366,345.40
  6. Step 6: Final answer
    x = 338,996.56

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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.