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Finding the Fourth Proportional to 223,155.06, 307,953.93 and 122,553.06

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Solution

The fourth proportional to 223,155.06, 307,953.93 and 122,553.06 is: 169,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,155.06 : 307,953.93 = 122,553.06 : x
  2. Step 2: Convert to fraction form
    223,155.06/307,953.93 = 122,553.06/x
  3. Step 3: Cross multiply
    223,155.06x = 307,953.93 × 122,553.06
  4. Step 4: Simplify right side
    223,155.06x = 37,740,696,460.53
  5. Step 5: Solve for x
    x = 37,740,696,460.53/223,155.06
  6. Step 6: Final answer
    x = 169,123.19

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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.