Home / 274,207.28-378,403.38-153,347.18

Finding the Fourth Proportional to 274,207.28, 378,403.38 and 153,347.18

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Solution

The fourth proportional to 274,207.28, 378,403.38 and 153,347.18 is: 211,617.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,207.28 : 378,403.38 = 153,347.18 : x
  2. Step 2: Convert to fraction form
    274,207.28/378,403.38 = 153,347.18/x
  3. Step 3: Cross multiply
    274,207.28x = 378,403.38 × 153,347.18
  4. Step 4: Simplify right side
    274,207.28x = 58,027,089,333.45
  5. Step 5: Solve for x
    x = 58,027,089,333.45/274,207.28
  6. Step 6: Final answer
    x = 211,617.61

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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.