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Finding the Fourth Proportional to 605,266.60, 907,986.30 and 205,925.80

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Solution

The fourth proportional to 605,266.60, 907,986.30 and 205,925.80 is: 308,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,266.60 : 907,986.30 = 205,925.80 : x
  2. Step 2: Convert to fraction form
    605,266.60/907,986.30 = 205,925.80/x
  3. Step 3: Cross multiply
    605,266.60x = 907,986.30 × 205,925.80
  4. Step 4: Simplify right side
    605,266.60x = 186,977,805,216.54
  5. Step 5: Solve for x
    x = 186,977,805,216.54/605,266.60
  6. Step 6: Final answer
    x = 308,918.10

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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.