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Finding the Fourth Proportional to 145,219.20, 217,828.80 and 95,452.80

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Solution

The fourth proportional to 145,219.20, 217,828.80 and 95,452.80 is: 143,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,219.20 : 217,828.80 = 95,452.80 : x
  2. Step 2: Convert to fraction form
    145,219.20/217,828.80 = 95,452.80/x
  3. Step 3: Cross multiply
    145,219.20x = 217,828.80 × 95,452.80
  4. Step 4: Simplify right side
    145,219.20x = 20,792,368,880.64
  5. Step 5: Solve for x
    x = 20,792,368,880.64/145,219.20
  6. Step 6: Final answer
    x = 143,179.20

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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.