Home / 220,528.47-304,199.43-138,726.37

Finding the Fourth Proportional to 220,528.47, 304,199.43 and 138,726.37

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Solution

The fourth proportional to 220,528.47, 304,199.43 and 138,726.37 is: 191,360.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,528.47 : 304,199.43 = 138,726.37 : x
  2. Step 2: Convert to fraction form
    220,528.47/304,199.43 = 138,726.37/x
  3. Step 3: Cross multiply
    220,528.47x = 304,199.43 × 138,726.37
  4. Step 4: Simplify right side
    220,528.47x = 42,200,481,158.97
  5. Step 5: Solve for x
    x = 42,200,481,158.97/220,528.47
  6. Step 6: Final answer
    x = 191,360.69

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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.