Home / 219,318.08-328,927.91-100,875.65

Finding the Fourth Proportional to 219,318.08, 328,927.91 and 100,875.65

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Solution

The fourth proportional to 219,318.08, 328,927.91 and 100,875.65 is: 151,290.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,318.08 : 328,927.91 = 100,875.65 : x
  2. Step 2: Convert to fraction form
    219,318.08/328,927.91 = 100,875.65/x
  3. Step 3: Cross multiply
    219,318.08x = 328,927.91 × 100,875.65
  4. Step 4: Simplify right side
    219,318.08x = 33,180,814,575.37
  5. Step 5: Solve for x
    x = 33,180,814,575.37/219,318.08
  6. Step 6: Final answer
    x = 151,290.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.