Home / 436,213.48-654,319.38-136,717.12

Finding the Fourth Proportional to 436,213.48, 654,319.38 and 136,717.12

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Solution

The fourth proportional to 436,213.48, 654,319.38 and 136,717.12 is: 205,075.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,213.48 : 654,319.38 = 136,717.12 : x
  2. Step 2: Convert to fraction form
    436,213.48/654,319.38 = 136,717.12/x
  3. Step 3: Cross multiply
    436,213.48x = 654,319.38 × 136,717.12
  4. Step 4: Simplify right side
    436,213.48x = 89,456,661,193.79
  5. Step 5: Solve for x
    x = 89,456,661,193.79/436,213.48
  6. Step 6: Final answer
    x = 205,075.42

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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.