Home / 238,985.37-329,809.22-131,565.40

Finding the Fourth Proportional to 238,985.37, 329,809.22 and 131,565.40

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Solution

The fourth proportional to 238,985.37, 329,809.22 and 131,565.40 is: 181,565.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,985.37 : 329,809.22 = 131,565.40 : x
  2. Step 2: Convert to fraction form
    238,985.37/329,809.22 = 131,565.40/x
  3. Step 3: Cross multiply
    238,985.37x = 329,809.22 × 131,565.40
  4. Step 4: Simplify right side
    238,985.37x = 43,391,481,952.99
  5. Step 5: Solve for x
    x = 43,391,481,952.99/238,985.37
  6. Step 6: Final answer
    x = 181,565.43

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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.