Home / 321,823.60-482,735.40-134,815.60

Finding the Fourth Proportional to 321,823.60, 482,735.40 and 134,815.60

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Solution

The fourth proportional to 321,823.60, 482,735.40 and 134,815.60 is: 202,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,823.60 : 482,735.40 = 134,815.60 : x
  2. Step 2: Convert to fraction form
    321,823.60/482,735.40 = 134,815.60/x
  3. Step 3: Cross multiply
    321,823.60x = 482,735.40 × 134,815.60
  4. Step 4: Simplify right side
    321,823.60x = 65,080,262,592.24
  5. Step 5: Solve for x
    x = 65,080,262,592.24/321,823.60
  6. Step 6: Final answer
    x = 202,223.40

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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.