Home / 330,622.07-455,836.06-214,129.71

Finding the Fourth Proportional to 330,622.07, 455,836.06 and 214,129.71

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Solution

The fourth proportional to 330,622.07, 455,836.06 and 214,129.71 is: 295,225.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,622.07 : 455,836.06 = 214,129.71 : x
  2. Step 2: Convert to fraction form
    330,622.07/455,836.06 = 214,129.71/x
  3. Step 3: Cross multiply
    330,622.07x = 455,836.06 × 214,129.71
  4. Step 4: Simplify right side
    330,622.07x = 97,608,043,603.00
  5. Step 5: Solve for x
    x = 97,608,043,603.00/330,622.07
  6. Step 6: Final answer
    x = 295,225.44

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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.