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Finding the Fourth Proportional to 225,062.52, 310,587.08 and 123,090

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Solution

The fourth proportional to 225,062.52, 310,587.08 and 123,090 is: 169,864.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,062.52 : 310,587.08 = 123,090 : x
  2. Step 2: Convert to fraction form
    225,062.52/310,587.08 = 123,090/x
  3. Step 3: Cross multiply
    225,062.52x = 310,587.08 × 123,090
  4. Step 4: Simplify right side
    225,062.52x = 38,230,163,677.20
  5. Step 5: Solve for x
    x = 38,230,163,677.20/225,062.52
  6. Step 6: Final answer
    x = 169,864.64

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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.