Home / 212,820.60-293,640.21-140,215.44

Finding the Fourth Proportional to 212,820.60, 293,640.21 and 140,215.44

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Solution

The fourth proportional to 212,820.60, 293,640.21 and 140,215.44 is: 193,462.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,820.60 : 293,640.21 = 140,215.44 : x
  2. Step 2: Convert to fraction form
    212,820.60/293,640.21 = 140,215.44/x
  3. Step 3: Cross multiply
    212,820.60x = 293,640.21 × 140,215.44
  4. Step 4: Simplify right side
    212,820.60x = 41,172,892,347.99
  5. Step 5: Solve for x
    x = 41,172,892,347.99/212,820.60
  6. Step 6: Final answer
    x = 193,462.91

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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.