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Finding the Fourth Proportional to 443,457.60, 665,040.60 and 162,938.40

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Solution

The fourth proportional to 443,457.60, 665,040.60 and 162,938.40 is: 244,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,457.60 : 665,040.60 = 162,938.40 : x
  2. Step 2: Convert to fraction form
    443,457.60/665,040.60 = 162,938.40/x
  3. Step 3: Cross multiply
    443,457.60x = 665,040.60 × 162,938.40
  4. Step 4: Simplify right side
    443,457.60x = 108,360,651,299.04
  5. Step 5: Solve for x
    x = 108,360,651,299.04/443,457.60
  6. Step 6: Final answer
    x = 244,354.03

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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.