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Finding the Fourth Proportional to 220,882.65, 304,809.68 and 134,985.29

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Solution

The fourth proportional to 220,882.65, 304,809.68 and 134,985.29 is: 186,274.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,882.65 : 304,809.68 = 134,985.29 : x
  2. Step 2: Convert to fraction form
    220,882.65/304,809.68 = 134,985.29/x
  3. Step 3: Cross multiply
    220,882.65x = 304,809.68 × 134,985.29
  4. Step 4: Simplify right side
    220,882.65x = 41,144,821,863.02
  5. Step 5: Solve for x
    x = 41,144,821,863.02/220,882.65
  6. Step 6: Final answer
    x = 186,274.58

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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.