Home / 282,339.03-389,516.73-161,415.35

Finding the Fourth Proportional to 282,339.03, 389,516.73 and 161,415.35

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Solution

The fourth proportional to 282,339.03, 389,516.73 and 161,415.35 is: 222,689.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,339.03 : 389,516.73 = 161,415.35 : x
  2. Step 2: Convert to fraction form
    282,339.03/389,516.73 = 161,415.35/x
  3. Step 3: Cross multiply
    282,339.03x = 389,516.73 × 161,415.35
  4. Step 4: Simplify right side
    282,339.03x = 62,873,979,303.81
  5. Step 5: Solve for x
    x = 62,873,979,303.81/282,339.03
  6. Step 6: Final answer
    x = 222,689.65

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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.