Home / 436,213.10-654,319.74-136,693.62

Finding the Fourth Proportional to 436,213.10, 654,319.74 and 136,693.62

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Solution

The fourth proportional to 436,213.10, 654,319.74 and 136,693.62 is: 205,040.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,213.10 : 654,319.74 = 136,693.62 : x
  2. Step 2: Convert to fraction form
    436,213.10/654,319.74 = 136,693.62/x
  3. Step 3: Cross multiply
    436,213.10x = 654,319.74 × 136,693.62
  4. Step 4: Simplify right side
    436,213.10x = 89,441,333,898.06
  5. Step 5: Solve for x
    x = 89,441,333,898.06/436,213.10
  6. Step 6: Final answer
    x = 205,040.46

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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.