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Finding the Fourth Proportional to 245,553.60, 338,918.40 and 160,622.40

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Solution

The fourth proportional to 245,553.60, 338,918.40 and 160,622.40 is: 221,694.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,553.60 : 338,918.40 = 160,622.40 : x
  2. Step 2: Convert to fraction form
    245,553.60/338,918.40 = 160,622.40/x
  3. Step 3: Cross multiply
    245,553.60x = 338,918.40 × 160,622.40
  4. Step 4: Simplify right side
    245,553.60x = 54,437,886,812.16
  5. Step 5: Solve for x
    x = 54,437,886,812.16/245,553.60
  6. Step 6: Final answer
    x = 221,694.52

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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.