Home / 255,170.97-381,820.34-212,946.82

Finding the Fourth Proportional to 255,170.97, 381,820.34 and 212,946.82

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Solution

The fourth proportional to 255,170.97, 381,820.34 and 212,946.82 is: 318,639.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,170.97 : 381,820.34 = 212,946.82 : x
  2. Step 2: Convert to fraction form
    255,170.97/381,820.34 = 212,946.82/x
  3. Step 3: Cross multiply
    255,170.97x = 381,820.34 × 212,946.82
  4. Step 4: Simplify right side
    255,170.97x = 81,307,426,149.58
  5. Step 5: Solve for x
    x = 81,307,426,149.58/255,170.97
  6. Step 6: Final answer
    x = 318,639.01

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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.