Home / 215,422.86-297,090.03-134,857.74

Finding the Fourth Proportional to 215,422.86, 297,090.03 and 134,857.74

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Solution

The fourth proportional to 215,422.86, 297,090.03 and 134,857.74 is: 185,982.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,422.86 : 297,090.03 = 134,857.74 : x
  2. Step 2: Convert to fraction form
    215,422.86/297,090.03 = 134,857.74/x
  3. Step 3: Cross multiply
    215,422.86x = 297,090.03 × 134,857.74
  4. Step 4: Simplify right side
    215,422.86x = 40,064,890,022.33
  5. Step 5: Solve for x
    x = 40,064,890,022.33/215,422.86
  6. Step 6: Final answer
    x = 185,982.54

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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.