Home / 214,731.59-321,455.86-130,235.63

Finding the Fourth Proportional to 214,731.59, 321,455.86 and 130,235.63

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Solution

The fourth proportional to 214,731.59, 321,455.86 and 130,235.63 is: 194,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,731.59 : 321,455.86 = 130,235.63 : x
  2. Step 2: Convert to fraction form
    214,731.59/321,455.86 = 130,235.63/x
  3. Step 3: Cross multiply
    214,731.59x = 321,455.86 × 130,235.63
  4. Step 4: Simplify right side
    214,731.59x = 41,865,004,511.42
  5. Step 5: Solve for x
    x = 41,865,004,511.42/214,731.59
  6. Step 6: Final answer
    x = 194,964.35

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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.