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Finding the Fourth Proportional to 622,147.20, 933,220.80 and 201,465.60

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Solution

The fourth proportional to 622,147.20, 933,220.80 and 201,465.60 is: 302,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,147.20 : 933,220.80 = 201,465.60 : x
  2. Step 2: Convert to fraction form
    622,147.20/933,220.80 = 201,465.60/x
  3. Step 3: Cross multiply
    622,147.20x = 933,220.80 × 201,465.60
  4. Step 4: Simplify right side
    622,147.20x = 188,011,888,404.48
  5. Step 5: Solve for x
    x = 188,011,888,404.48/622,147.20
  6. Step 6: Final answer
    x = 302,198.40

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Similar ratio
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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.