Home / 220,865.90-304,786.63-134,968.51

Finding the Fourth Proportional to 220,865.90, 304,786.63 and 134,968.51

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Solution

The fourth proportional to 220,865.90, 304,786.63 and 134,968.51 is: 186,251.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,865.90 : 304,786.63 = 134,968.51 : x
  2. Step 2: Convert to fraction form
    220,865.90/304,786.63 = 134,968.51/x
  3. Step 3: Cross multiply
    220,865.90x = 304,786.63 × 134,968.51
  4. Step 4: Simplify right side
    220,865.90x = 41,136,597,319.02
  5. Step 5: Solve for x
    x = 41,136,597,319.02/220,865.90
  6. Step 6: Final answer
    x = 186,251.46

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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.