Home / 286,013.73-394,746.30-158,730.33

Finding the Fourth Proportional to 286,013.73, 394,746.30 and 158,730.33

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Solution

The fourth proportional to 286,013.73, 394,746.30 and 158,730.33 is: 219,074.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,013.73 : 394,746.30 = 158,730.33 : x
  2. Step 2: Convert to fraction form
    286,013.73/394,746.30 = 158,730.33/x
  3. Step 3: Cross multiply
    286,013.73x = 394,746.30 × 158,730.33
  4. Step 4: Simplify right side
    286,013.73x = 62,658,210,465.28
  5. Step 5: Solve for x
    x = 62,658,210,465.28/286,013.73
  6. Step 6: Final answer
    x = 219,074.13

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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.