Home / 313,428.26-469,731.72-144,927.20

Finding the Fourth Proportional to 313,428.26, 469,731.72 and 144,927.20

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Solution

The fourth proportional to 313,428.26, 469,731.72 and 144,927.20 is: 217,200.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,428.26 : 469,731.72 = 144,927.20 : x
  2. Step 2: Convert to fraction form
    313,428.26/469,731.72 = 144,927.20/x
  3. Step 3: Cross multiply
    313,428.26x = 469,731.72 × 144,927.20
  4. Step 4: Simplify right side
    313,428.26x = 68,076,902,930.78
  5. Step 5: Solve for x
    x = 68,076,902,930.78/313,428.26
  6. Step 6: Final answer
    x = 217,200.91

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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.