Home / 223,422.42-308,252.06-138,588.69

Finding the Fourth Proportional to 223,422.42, 308,252.06 and 138,588.69

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Solution

The fourth proportional to 223,422.42, 308,252.06 and 138,588.69 is: 191,208.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,422.42 : 308,252.06 = 138,588.69 : x
  2. Step 2: Convert to fraction form
    223,422.42/308,252.06 = 138,588.69/x
  3. Step 3: Cross multiply
    223,422.42x = 308,252.06 × 138,588.69
  4. Step 4: Simplify right side
    223,422.42x = 42,720,248,492.26
  5. Step 5: Solve for x
    x = 42,720,248,492.26/223,422.42
  6. Step 6: Final answer
    x = 191,208.42

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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.