Home / 218,026.49-326,979.99-137,944.01

Finding the Fourth Proportional to 218,026.49, 326,979.99 and 137,944.01

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Solution

The fourth proportional to 218,026.49, 326,979.99 and 137,944.01 is: 206,878.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,026.49 : 326,979.99 = 137,944.01 : x
  2. Step 2: Convert to fraction form
    218,026.49/326,979.99 = 137,944.01/x
  3. Step 3: Cross multiply
    218,026.49x = 326,979.99 × 137,944.01
  4. Step 4: Simplify right side
    218,026.49x = 45,104,931,827.81
  5. Step 5: Solve for x
    x = 45,104,931,827.81/218,026.49
  6. Step 6: Final answer
    x = 206,878.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.