Home / 210,875.20-315,962.86-148,414.48

Finding the Fourth Proportional to 210,875.20, 315,962.86 and 148,414.48

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Solution

The fourth proportional to 210,875.20, 315,962.86 and 148,414.48 is: 222,375.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,875.20 : 315,962.86 = 148,414.48 : x
  2. Step 2: Convert to fraction form
    210,875.20/315,962.86 = 148,414.48/x
  3. Step 3: Cross multiply
    210,875.20x = 315,962.86 × 148,414.48
  4. Step 4: Simplify right side
    210,875.20x = 46,893,463,566.21
  5. Step 5: Solve for x
    x = 46,893,463,566.21/210,875.20
  6. Step 6: Final answer
    x = 222,375.43

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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.