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Finding the Fourth Proportional to 259,580.70, 389,371.05 and 159,416.10

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Solution

The fourth proportional to 259,580.70, 389,371.05 and 159,416.10 is: 239,124.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,580.70 : 389,371.05 = 159,416.10 : x
  2. Step 2: Convert to fraction form
    259,580.70/389,371.05 = 159,416.10/x
  3. Step 3: Cross multiply
    259,580.70x = 389,371.05 × 159,416.10
  4. Step 4: Simplify right side
    259,580.70x = 62,072,014,243.91
  5. Step 5: Solve for x
    x = 62,072,014,243.91/259,580.70
  6. Step 6: Final answer
    x = 239,124.15

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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.