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Finding the Fourth Proportional to 223,151.56, 307,949.10 and 122,549.56

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Solution

The fourth proportional to 223,151.56, 307,949.10 and 122,549.56 is: 169,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,151.56 : 307,949.10 = 122,549.56 : x
  2. Step 2: Convert to fraction form
    223,151.56/307,949.10 = 122,549.56/x
  3. Step 3: Cross multiply
    223,151.56x = 307,949.10 × 122,549.56
  4. Step 4: Simplify right side
    223,151.56x = 37,739,026,707.40
  5. Step 5: Solve for x
    x = 37,739,026,707.40/223,151.56
  6. Step 6: Final answer
    x = 169,118.36

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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.