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Finding the Fourth Proportional to 300,005.20, 450,058.20 and 89,664.40

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Solution

The fourth proportional to 300,005.20, 450,058.20 and 89,664.40 is: 134,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,005.20 : 450,058.20 = 89,664.40 : x
  2. Step 2: Convert to fraction form
    300,005.20/450,058.20 = 89,664.40/x
  3. Step 3: Cross multiply
    300,005.20x = 450,058.20 × 89,664.40
  4. Step 4: Simplify right side
    300,005.20x = 40,354,198,468.08
  5. Step 5: Solve for x
    x = 40,354,198,468.08/300,005.20
  6. Step 6: Final answer
    x = 134,511.66

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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.