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Finding the Fourth Proportional to 225,214.29, 310,790.88 and 123,239.34

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Solution

The fourth proportional to 225,214.29, 310,790.88 and 123,239.34 is: 170,067.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,214.29 : 310,790.88 = 123,239.34 : x
  2. Step 2: Convert to fraction form
    225,214.29/310,790.88 = 123,239.34/x
  3. Step 3: Cross multiply
    225,214.29x = 310,790.88 × 123,239.34
  4. Step 4: Simplify right side
    225,214.29x = 38,301,662,929.22
  5. Step 5: Solve for x
    x = 38,301,662,929.22/225,214.29
  6. Step 6: Final answer
    x = 170,067.64

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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.