Home / 346,481.32-478,144.21-187,505.32

Finding the Fourth Proportional to 346,481.32, 478,144.21 and 187,505.32

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Solution

The fourth proportional to 346,481.32, 478,144.21 and 187,505.32 is: 258,757.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,481.32 : 478,144.21 = 187,505.32 : x
  2. Step 2: Convert to fraction form
    346,481.32/478,144.21 = 187,505.32/x
  3. Step 3: Cross multiply
    346,481.32x = 478,144.21 × 187,505.32
  4. Step 4: Simplify right side
    346,481.32x = 89,654,580,711.48
  5. Step 5: Solve for x
    x = 89,654,580,711.48/346,481.32
  6. Step 6: Final answer
    x = 258,757.33

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1.5x scale

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.