Home / 286,285.76-395,081.88-158,966.72

Finding the Fourth Proportional to 286,285.76, 395,081.88 and 158,966.72

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Solution

The fourth proportional to 286,285.76, 395,081.88 and 158,966.72 is: 219,378.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,285.76 : 395,081.88 = 158,966.72 : x
  2. Step 2: Convert to fraction form
    286,285.76/395,081.88 = 158,966.72/x
  3. Step 3: Cross multiply
    286,285.76x = 395,081.88 × 158,966.72
  4. Step 4: Simplify right side
    286,285.76x = 62,804,870,595.03
  5. Step 5: Solve for x
    x = 62,804,870,595.03/286,285.76
  6. Step 6: Final answer
    x = 219,378.26

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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.