Home / 352,815.70-486,927.40-209,576.32

Finding the Fourth Proportional to 352,815.70, 486,927.40 and 209,576.32

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Solution

The fourth proportional to 352,815.70, 486,927.40 and 209,576.32 is: 289,240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,815.70 : 486,927.40 = 209,576.32 : x
  2. Step 2: Convert to fraction form
    352,815.70/486,927.40 = 209,576.32/x
  3. Step 3: Cross multiply
    352,815.70x = 486,927.40 × 209,576.32
  4. Step 4: Simplify right side
    352,815.70x = 102,048,452,599.17
  5. Step 5: Solve for x
    x = 102,048,452,599.17/352,815.70
  6. Step 6: Final answer
    x = 289,240.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.