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Finding the Fourth Proportional to 298,273.60, 411,622.50 and 162,313.28

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Solution

The fourth proportional to 298,273.60, 411,622.50 and 162,313.28 is: 223,995.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,273.60 : 411,622.50 = 162,313.28 : x
  2. Step 2: Convert to fraction form
    298,273.60/411,622.50 = 162,313.28/x
  3. Step 3: Cross multiply
    298,273.60x = 411,622.50 × 162,313.28
  4. Step 4: Simplify right side
    298,273.60x = 66,811,798,096.80
  5. Step 5: Solve for x
    x = 66,811,798,096.80/298,273.60
  6. Step 6: Final answer
    x = 223,995.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.