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Finding the Fourth Proportional to 248,292, 372,511.44 and 143,186.40

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Solution

The fourth proportional to 248,292, 372,511.44 and 143,186.40 is: 214,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,292 : 372,511.44 = 143,186.40 : x
  2. Step 2: Convert to fraction form
    248,292/372,511.44 = 143,186.40/x
  3. Step 3: Cross multiply
    248,292x = 372,511.44 × 143,186.40
  4. Step 4: Simplify right side
    248,292x = 53,338,572,052.42
  5. Step 5: Solve for x
    x = 53,338,572,052.42/248,292
  6. Step 6: Final answer
    x = 214,821.95

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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.