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Finding the Fourth Proportional to 605,130.80, 907,696.20 and 161,898.80

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Solution

The fourth proportional to 605,130.80, 907,696.20 and 161,898.80 is: 242,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,130.80 : 907,696.20 = 161,898.80 : x
  2. Step 2: Convert to fraction form
    605,130.80/907,696.20 = 161,898.80/x
  3. Step 3: Cross multiply
    605,130.80x = 907,696.20 × 161,898.80
  4. Step 4: Simplify right side
    605,130.80x = 146,954,925,544.56
  5. Step 5: Solve for x
    x = 146,954,925,544.56/605,130.80
  6. Step 6: Final answer
    x = 242,848.20

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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.