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Finding the Fourth Proportional to 285,100.40, 427,745.60 and 95,579.50

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Solution

The fourth proportional to 285,100.40, 427,745.60 and 95,579.50 is: 143,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,100.40 : 427,745.60 = 95,579.50 : x
  2. Step 2: Convert to fraction form
    285,100.40/427,745.60 = 95,579.50/x
  3. Step 3: Cross multiply
    285,100.40x = 427,745.60 × 95,579.50
  4. Step 4: Simplify right side
    285,100.40x = 40,883,710,575.20
  5. Step 5: Solve for x
    x = 40,883,710,575.20/285,100.40
  6. Step 6: Final answer
    x = 143,401.10

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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.