Home / 378,021.16-567,113.10-188,583.40

Finding the Fourth Proportional to 378,021.16, 567,113.10 and 188,583.40

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Solution

The fourth proportional to 378,021.16, 567,113.10 and 188,583.40 is: 282,915.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,021.16 : 567,113.10 = 188,583.40 : x
  2. Step 2: Convert to fraction form
    378,021.16/567,113.10 = 188,583.40/x
  3. Step 3: Cross multiply
    378,021.16x = 567,113.10 × 188,583.40
  4. Step 4: Simplify right side
    378,021.16x = 106,948,116,582.54
  5. Step 5: Solve for x
    x = 106,948,116,582.54/378,021.16
  6. Step 6: Final answer
    x = 282,915.69

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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.