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Finding the Fourth Proportional to 402,242.40, 603,363.60 and 244,519.20

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Solution

The fourth proportional to 402,242.40, 603,363.60 and 244,519.20 is: 366,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,242.40 : 603,363.60 = 244,519.20 : x
  2. Step 2: Convert to fraction form
    402,242.40/603,363.60 = 244,519.20/x
  3. Step 3: Cross multiply
    402,242.40x = 603,363.60 × 244,519.20
  4. Step 4: Simplify right side
    402,242.40x = 147,533,984,781.12
  5. Step 5: Solve for x
    x = 147,533,984,781.12/402,242.40
  6. Step 6: Final answer
    x = 366,778.80

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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.