Home / 282,095.72-389,292.09-161,239.61

Finding the Fourth Proportional to 282,095.72, 389,292.09 and 161,239.61

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Solution

The fourth proportional to 282,095.72, 389,292.09 and 161,239.61 is: 222,510.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,095.72 : 389,292.09 = 161,239.61 : x
  2. Step 2: Convert to fraction form
    282,095.72/389,292.09 = 161,239.61/x
  3. Step 3: Cross multiply
    282,095.72x = 389,292.09 × 161,239.61
  4. Step 4: Simplify right side
    282,095.72x = 62,769,302,821.22
  5. Step 5: Solve for x
    x = 62,769,302,821.22/282,095.72
  6. Step 6: Final answer
    x = 222,510.66

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1.5x scale

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.