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Finding the Fourth Proportional to 605,860.40, 908,211 and 226,678.16

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Solution

The fourth proportional to 605,860.40, 908,211 and 226,678.16 is: 339,800.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,860.40 : 908,211 = 226,678.16 : x
  2. Step 2: Convert to fraction form
    605,860.40/908,211 = 226,678.16/x
  3. Step 3: Cross multiply
    605,860.40x = 908,211 × 226,678.16
  4. Step 4: Simplify right side
    605,860.40x = 205,871,598,371.76
  5. Step 5: Solve for x
    x = 205,871,598,371.76/605,860.40
  6. Step 6: Final answer
    x = 339,800.39

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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.