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Finding the Fourth Proportional to 300,017.20, 450,220.20 and 173,657.20

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Solution

The fourth proportional to 300,017.20, 450,220.20 and 173,657.20 is: 260,598.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,017.20 : 450,220.20 = 173,657.20 : x
  2. Step 2: Convert to fraction form
    300,017.20/450,220.20 = 173,657.20/x
  3. Step 3: Cross multiply
    300,017.20x = 450,220.20 × 173,657.20
  4. Step 4: Simplify right side
    300,017.20x = 78,183,979,315.44
  5. Step 5: Solve for x
    x = 78,183,979,315.44/300,017.20
  6. Step 6: Final answer
    x = 260,598.32

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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.