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Finding the Fourth Proportional to 300,002.80, 450,011.40 and 89,647.60

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Solution

The fourth proportional to 300,002.80, 450,011.40 and 89,647.60 is: 134,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,002.80 : 450,011.40 = 89,647.60 : x
  2. Step 2: Convert to fraction form
    300,002.80/450,011.40 = 89,647.60/x
  3. Step 3: Cross multiply
    300,002.80x = 450,011.40 × 89,647.60
  4. Step 4: Simplify right side
    300,002.80x = 40,342,441,982.64
  5. Step 5: Solve for x
    x = 40,342,441,982.64/300,002.80
  6. Step 6: Final answer
    x = 134,473.55

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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.