Home / 282,167.07-389,395.31-154,854.51

Finding the Fourth Proportional to 282,167.07, 389,395.31 and 154,854.51

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Solution

The fourth proportional to 282,167.07, 389,395.31 and 154,854.51 is: 213,701.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,167.07 : 389,395.31 = 154,854.51 : x
  2. Step 2: Convert to fraction form
    282,167.07/389,395.31 = 154,854.51/x
  3. Step 3: Cross multiply
    282,167.07x = 389,395.31 × 154,854.51
  4. Step 4: Simplify right side
    282,167.07x = 60,299,619,926.35
  5. Step 5: Solve for x
    x = 60,299,619,926.35/282,167.07
  6. Step 6: Final answer
    x = 213,701.83

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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.