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Finding the Fourth Proportional to 169,305.48, 253,966.32 and 139,668.36

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Solution

The fourth proportional to 169,305.48, 253,966.32 and 139,668.36 is: 209,509.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,305.48 : 253,966.32 = 139,668.36 : x
  2. Step 2: Convert to fraction form
    169,305.48/253,966.32 = 139,668.36/x
  3. Step 3: Cross multiply
    169,305.48x = 253,966.32 × 139,668.36
  4. Step 4: Simplify right side
    169,305.48x = 35,471,059,409.64
  5. Step 5: Solve for x
    x = 35,471,059,409.64/169,305.48
  6. Step 6: Final answer
    x = 209,509.22

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.