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Finding the Fourth Proportional to 445,813.94, 615,223.14 and 254,831.42

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Solution

The fourth proportional to 445,813.94, 615,223.14 and 254,831.42 is: 351,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,813.94 : 615,223.14 = 254,831.42 : x
  2. Step 2: Convert to fraction form
    445,813.94/615,223.14 = 254,831.42/x
  3. Step 3: Cross multiply
    445,813.94x = 615,223.14 × 254,831.42
  4. Step 4: Simplify right side
    445,813.94x = 156,778,183,306.94
  5. Step 5: Solve for x
    x = 156,778,183,306.94/445,813.94
  6. Step 6: Final answer
    x = 351,667.30

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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.