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Finding the Fourth Proportional to 376,408.40, 564,612.60 and 189,784.40

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Solution

The fourth proportional to 376,408.40, 564,612.60 and 189,784.40 is: 284,676.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,408.40 : 564,612.60 = 189,784.40 : x
  2. Step 2: Convert to fraction form
    376,408.40/564,612.60 = 189,784.40/x
  3. Step 3: Cross multiply
    376,408.40x = 564,612.60 × 189,784.40
  4. Step 4: Simplify right side
    376,408.40x = 107,154,663,523.44
  5. Step 5: Solve for x
    x = 107,154,663,523.44/376,408.40
  6. Step 6: Final answer
    x = 284,676.60

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1.5x scale

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.