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Finding the Fourth Proportional to 376,810.70, 565,216.05 and 326,072.30

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Solution

The fourth proportional to 376,810.70, 565,216.05 and 326,072.30 is: 489,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,810.70 : 565,216.05 = 326,072.30 : x
  2. Step 2: Convert to fraction form
    376,810.70/565,216.05 = 326,072.30/x
  3. Step 3: Cross multiply
    376,810.70x = 565,216.05 × 326,072.30
  4. Step 4: Simplify right side
    376,810.70x = 184,301,297,420.42
  5. Step 5: Solve for x
    x = 184,301,297,420.42/376,810.70
  6. Step 6: Final answer
    x = 489,108.45

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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.