Home / 220,965.77-304,924.15-135,068.57

Finding the Fourth Proportional to 220,965.77, 304,924.15 and 135,068.57

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Solution

The fourth proportional to 220,965.77, 304,924.15 and 135,068.57 is: 186,389.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,965.77 : 304,924.15 = 135,068.57 : x
  2. Step 2: Convert to fraction form
    220,965.77/304,924.15 = 135,068.57/x
  3. Step 3: Cross multiply
    220,965.77x = 304,924.15 × 135,068.57
  4. Step 4: Simplify right side
    220,965.77x = 41,185,668,898.97
  5. Step 5: Solve for x
    x = 41,185,668,898.97/220,965.77
  6. Step 6: Final answer
    x = 186,389.36

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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.