Home / 287,914.32-397,319.00-158,853.83

Finding the Fourth Proportional to 287,914.32, 397,319.00 and 158,853.83

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Solution

The fourth proportional to 287,914.32, 397,319.00 and 158,853.83 is: 219,216.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,914.32 : 397,319.00 = 158,853.83 : x
  2. Step 2: Convert to fraction form
    287,914.32/397,319.00 = 158,853.83/x
  3. Step 3: Cross multiply
    287,914.32x = 397,319.00 × 158,853.83
  4. Step 4: Simplify right side
    287,914.32x = 63,115,645,900.06
  5. Step 5: Solve for x
    x = 63,115,645,900.06/287,914.32
  6. Step 6: Final answer
    x = 219,216.76

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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.