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Finding the Fourth Proportional to 570,105.41, 855,022.03 and 170,638.92

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Solution

The fourth proportional to 570,105.41, 855,022.03 and 170,638.92 is: 255,917.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,105.41 : 855,022.03 = 170,638.92 : x
  2. Step 2: Convert to fraction form
    570,105.41/855,022.03 = 170,638.92/x
  3. Step 3: Cross multiply
    570,105.41x = 855,022.03 × 170,638.92
  4. Step 4: Simplify right side
    570,105.41x = 145,900,035,348.81
  5. Step 5: Solve for x
    x = 145,900,035,348.81/570,105.41
  6. Step 6: Final answer
    x = 255,917.65

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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.