Home / 309,216.65-426,530.35-204,440.22

Finding the Fourth Proportional to 309,216.65, 426,530.35 and 204,440.22

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Solution

The fourth proportional to 309,216.65, 426,530.35 and 204,440.22 is: 282,002.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,216.65 : 426,530.35 = 204,440.22 : x
  2. Step 2: Convert to fraction form
    309,216.65/426,530.35 = 204,440.22/x
  3. Step 3: Cross multiply
    309,216.65x = 426,530.35 × 204,440.22
  4. Step 4: Simplify right side
    309,216.65x = 87,199,958,590.68
  5. Step 5: Solve for x
    x = 87,199,958,590.68/309,216.65
  6. Step 6: Final answer
    x = 282,002.79

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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.