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Finding the Fourth Proportional to 354,774.40, 532,550.40 and 221,804.80

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Solution

The fourth proportional to 354,774.40, 532,550.40 and 221,804.80 is: 332,950.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,774.40 : 532,550.40 = 221,804.80 : x
  2. Step 2: Convert to fraction form
    354,774.40/532,550.40 = 221,804.80/x
  3. Step 3: Cross multiply
    354,774.40x = 532,550.40 × 221,804.80
  4. Step 4: Simplify right side
    354,774.40x = 118,122,234,961.92
  5. Step 5: Solve for x
    x = 118,122,234,961.92/354,774.40
  6. Step 6: Final answer
    x = 332,950.28

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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.