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Finding the Fourth Proportional to 605,047.10, 907,570.65 and 161,815.10

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Solution

The fourth proportional to 605,047.10, 907,570.65 and 161,815.10 is: 242,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,047.10 : 907,570.65 = 161,815.10 : x
  2. Step 2: Convert to fraction form
    605,047.10/907,570.65 = 161,815.10/x
  3. Step 3: Cross multiply
    605,047.10x = 907,570.65 × 161,815.10
  4. Step 4: Simplify right side
    605,047.10x = 146,858,635,486.82
  5. Step 5: Solve for x
    x = 146,858,635,486.82/605,047.10
  6. Step 6: Final answer
    x = 242,722.65

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Similar ratio
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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.