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Finding the Fourth Proportional to 354,314.40, 531,471.60 and 330,813.60

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Solution

The fourth proportional to 354,314.40, 531,471.60 and 330,813.60 is: 496,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,314.40 : 531,471.60 = 330,813.60 : x
  2. Step 2: Convert to fraction form
    354,314.40/531,471.60 = 330,813.60/x
  3. Step 3: Cross multiply
    354,314.40x = 531,471.60 × 330,813.60
  4. Step 4: Simplify right side
    354,314.40x = 175,818,033,293.76
  5. Step 5: Solve for x
    x = 175,818,033,293.76/354,314.40
  6. Step 6: Final answer
    x = 496,220.40

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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.