Home / 436,210.09-654,315.23-136,690.61

Finding the Fourth Proportional to 436,210.09, 654,315.23 and 136,690.61

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Solution

The fourth proportional to 436,210.09, 654,315.23 and 136,690.61 is: 205,035.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,210.09 : 654,315.23 = 136,690.61 : x
  2. Step 2: Convert to fraction form
    436,210.09/654,315.23 = 136,690.61/x
  3. Step 3: Cross multiply
    436,210.09x = 654,315.23 × 136,690.61
  4. Step 4: Simplify right side
    436,210.09x = 89,438,747,920.99
  5. Step 5: Solve for x
    x = 89,438,747,920.99/436,210.09
  6. Step 6: Final answer
    x = 205,035.94

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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.