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Finding the Fourth Proportional to 190,129.20, 285,193.80 and 159,025.20

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Solution

The fourth proportional to 190,129.20, 285,193.80 and 159,025.20 is: 238,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,129.20 : 285,193.80 = 159,025.20 : x
  2. Step 2: Convert to fraction form
    190,129.20/285,193.80 = 159,025.20/x
  3. Step 3: Cross multiply
    190,129.20x = 285,193.80 × 159,025.20
  4. Step 4: Simplify right side
    190,129.20x = 45,353,001,083.76
  5. Step 5: Solve for x
    x = 45,353,001,083.76/190,129.20
  6. Step 6: Final answer
    x = 238,537.80

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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.