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Finding the Fourth Proportional to 376,363.20, 519,408.48 and 248,817.60

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Solution

The fourth proportional to 376,363.20, 519,408.48 and 248,817.60 is: 343,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,363.20 : 519,408.48 = 248,817.60 : x
  2. Step 2: Convert to fraction form
    376,363.20/519,408.48 = 248,817.60/x
  3. Step 3: Cross multiply
    376,363.20x = 519,408.48 × 248,817.60
  4. Step 4: Simplify right side
    376,363.20x = 129,237,971,413.25
  5. Step 5: Solve for x
    x = 129,237,971,413.25/376,363.20
  6. Step 6: Final answer
    x = 343,386.31

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1.5x scale

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.