Home / 455,266.09-682,839.15-139,696.57

Finding the Fourth Proportional to 455,266.09, 682,839.15 and 139,696.57

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Solution

The fourth proportional to 455,266.09, 682,839.15 and 139,696.57 is: 209,526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,266.09 : 682,839.15 = 139,696.57 : x
  2. Step 2: Convert to fraction form
    455,266.09/682,839.15 = 139,696.57/x
  3. Step 3: Cross multiply
    455,266.09x = 682,839.15 × 139,696.57
  4. Step 4: Simplify right side
    455,266.09x = 95,390,287,116.72
  5. Step 5: Solve for x
    x = 95,390,287,116.72/455,266.09
  6. Step 6: Final answer
    x = 209,526.45

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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.