Home / 282,282.47-389,551.17-154,958.06

Finding the Fourth Proportional to 282,282.47, 389,551.17 and 154,958.06

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Solution

The fourth proportional to 282,282.47, 389,551.17 and 154,958.06 is: 213,842.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,282.47 : 389,551.17 = 154,958.06 : x
  2. Step 2: Convert to fraction form
    282,282.47/389,551.17 = 154,958.06/x
  3. Step 3: Cross multiply
    282,282.47x = 389,551.17 × 154,958.06
  4. Step 4: Simplify right side
    282,282.47x = 60,364,095,128.90
  5. Step 5: Solve for x
    x = 60,364,095,128.90/282,282.47
  6. Step 6: Final answer
    x = 213,842.88

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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.