Home / 345,379.41-476,492.58-209,363.76

Finding the Fourth Proportional to 345,379.41, 476,492.58 and 209,363.76

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Solution

The fourth proportional to 345,379.41, 476,492.58 and 209,363.76 is: 288,842.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,379.41 : 476,492.58 = 209,363.76 : x
  2. Step 2: Convert to fraction form
    345,379.41/476,492.58 = 209,363.76/x
  3. Step 3: Cross multiply
    345,379.41x = 476,492.58 × 209,363.76
  4. Step 4: Simplify right side
    345,379.41x = 99,760,278,160.90
  5. Step 5: Solve for x
    x = 99,760,278,160.90/345,379.41
  6. Step 6: Final answer
    x = 288,842.58

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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.