Home / 282,117.01-389,320.27-154,789.87

Finding the Fourth Proportional to 282,117.01, 389,320.27 and 154,789.87

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Solution

The fourth proportional to 282,117.01, 389,320.27 and 154,789.87 is: 213,609.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,117.01 : 389,320.27 = 154,789.87 : x
  2. Step 2: Convert to fraction form
    282,117.01/389,320.27 = 154,789.87/x
  3. Step 3: Cross multiply
    282,117.01x = 389,320.27 × 154,789.87
  4. Step 4: Simplify right side
    282,117.01x = 60,262,832,621.39
  5. Step 5: Solve for x
    x = 60,262,832,621.39/282,117.01
  6. Step 6: Final answer
    x = 213,609.36

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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.