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Finding the Fourth Proportional to 322,295.20, 483,442.80 and 286,352.80

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Solution

The fourth proportional to 322,295.20, 483,442.80 and 286,352.80 is: 429,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,295.20 : 483,442.80 = 286,352.80 : x
  2. Step 2: Convert to fraction form
    322,295.20/483,442.80 = 286,352.80/x
  3. Step 3: Cross multiply
    322,295.20x = 483,442.80 × 286,352.80
  4. Step 4: Simplify right side
    322,295.20x = 138,435,199,419.84
  5. Step 5: Solve for x
    x = 138,435,199,419.84/322,295.20
  6. Step 6: Final answer
    x = 429,529.20

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1.5x scale

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.