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Finding the Fourth Proportional to 321,352.08, 479,155.04 and 312,524.16

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Solution

The fourth proportional to 321,352.08, 479,155.04 and 312,524.16 is: 465,992.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,352.08 : 479,155.04 = 312,524.16 : x
  2. Step 2: Convert to fraction form
    321,352.08/479,155.04 = 312,524.16/x
  3. Step 3: Cross multiply
    321,352.08x = 479,155.04 × 312,524.16
  4. Step 4: Simplify right side
    321,352.08x = 149,747,526,385.77
  5. Step 5: Solve for x
    x = 149,747,526,385.77/321,352.08
  6. Step 6: Final answer
    x = 465,992.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.