Home / 220,867.90-304,789.39-134,970.51

Finding the Fourth Proportional to 220,867.90, 304,789.39 and 134,970.51

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Solution

The fourth proportional to 220,867.90, 304,789.39 and 134,970.51 is: 186,254.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,867.90 : 304,789.39 = 134,970.51 : x
  2. Step 2: Convert to fraction form
    220,867.90/304,789.39 = 134,970.51/x
  3. Step 3: Cross multiply
    220,867.90x = 304,789.39 × 134,970.51
  4. Step 4: Simplify right side
    220,867.90x = 41,137,579,410.89
  5. Step 5: Solve for x
    x = 41,137,579,410.89/220,867.90
  6. Step 6: Final answer
    x = 186,254.22

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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.