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Finding the Fourth Proportional to 207,627.20, 311,246.40 and 162,623.60

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Solution

The fourth proportional to 207,627.20, 311,246.40 and 162,623.60 is: 243,783.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,627.20 : 311,246.40 = 162,623.60 : x
  2. Step 2: Convert to fraction form
    207,627.20/311,246.40 = 162,623.60/x
  3. Step 3: Cross multiply
    207,627.20x = 311,246.40 × 162,623.60
  4. Step 4: Simplify right side
    207,627.20x = 50,616,010,055.04
  5. Step 5: Solve for x
    x = 50,616,010,055.04/207,627.20
  6. Step 6: Final answer
    x = 243,783.14

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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.