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Finding the Fourth Proportional to 202,351.60, 279,243.68 and 111,707.60

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Solution

The fourth proportional to 202,351.60, 279,243.68 and 111,707.60 is: 154,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,351.60 : 279,243.68 = 111,707.60 : x
  2. Step 2: Convert to fraction form
    202,351.60/279,243.68 = 111,707.60/x
  3. Step 3: Cross multiply
    202,351.60x = 279,243.68 × 111,707.60
  4. Step 4: Simplify right side
    202,351.60x = 31,193,641,307.97
  5. Step 5: Solve for x
    x = 31,193,641,307.97/202,351.60
  6. Step 6: Final answer
    x = 154,155.64

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1.5x scale

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.