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Finding the Fourth Proportional to 225,360.66, 310,985.89 and 123,366.58

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Solution

The fourth proportional to 225,360.66, 310,985.89 and 123,366.58 is: 170,239.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,360.66 : 310,985.89 = 123,366.58 : x
  2. Step 2: Convert to fraction form
    225,360.66/310,985.89 = 123,366.58/x
  3. Step 3: Cross multiply
    225,360.66x = 310,985.89 × 123,366.58
  4. Step 4: Simplify right side
    225,360.66x = 38,365,265,990.39
  5. Step 5: Solve for x
    x = 38,365,265,990.39/225,360.66
  6. Step 6: Final answer
    x = 170,239.41

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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.