Home / 220,712.25-304,615.71-130,039.23

Finding the Fourth Proportional to 220,712.25, 304,615.71 and 130,039.23

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Solution

The fourth proportional to 220,712.25, 304,615.71 and 130,039.23 is: 179,473.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,712.25 : 304,615.71 = 130,039.23 : x
  2. Step 2: Convert to fraction form
    220,712.25/304,615.71 = 130,039.23/x
  3. Step 3: Cross multiply
    220,712.25x = 304,615.71 × 130,039.23
  4. Step 4: Simplify right side
    220,712.25x = 39,611,992,374.30
  5. Step 5: Solve for x
    x = 39,611,992,374.30/220,712.25
  6. Step 6: Final answer
    x = 179,473.47

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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.