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Finding the Fourth Proportional to 226,495.80, 312,557.49 and 129,696.48

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Solution

The fourth proportional to 226,495.80, 312,557.49 and 129,696.48 is: 178,977.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,495.80 : 312,557.49 = 129,696.48 : x
  2. Step 2: Convert to fraction form
    226,495.80/312,557.49 = 129,696.48/x
  3. Step 3: Cross multiply
    226,495.80x = 312,557.49 × 129,696.48
  4. Step 4: Simplify right side
    226,495.80x = 40,537,606,250.64
  5. Step 5: Solve for x
    x = 40,537,606,250.64/226,495.80
  6. Step 6: Final answer
    x = 178,977.30

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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.