Home / 340,221.52-509,086.54-321,971.95

Finding the Fourth Proportional to 340,221.52, 509,086.54 and 321,971.95

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Solution

The fourth proportional to 340,221.52, 509,086.54 and 321,971.95 is: 481,779.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,221.52 : 509,086.54 = 321,971.95 : x
  2. Step 2: Convert to fraction form
    340,221.52/509,086.54 = 321,971.95/x
  3. Step 3: Cross multiply
    340,221.52x = 509,086.54 × 321,971.95
  4. Step 4: Simplify right side
    340,221.52x = 163,911,586,002.55
  5. Step 5: Solve for x
    x = 163,911,586,002.55/340,221.52
  6. Step 6: Final answer
    x = 481,779.01

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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.