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Finding the Fourth Proportional to 321,124.60, 481,686.90 and 96,519.70

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Solution

The fourth proportional to 321,124.60, 481,686.90 and 96,519.70 is: 144,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,124.60 : 481,686.90 = 96,519.70 : x
  2. Step 2: Convert to fraction form
    321,124.60/481,686.90 = 96,519.70/x
  3. Step 3: Cross multiply
    321,124.60x = 481,686.90 × 96,519.70
  4. Step 4: Simplify right side
    321,124.60x = 46,492,275,081.93
  5. Step 5: Solve for x
    x = 46,492,275,081.93/321,124.60
  6. Step 6: Final answer
    x = 144,779.55

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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.