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Finding the Fourth Proportional to 170,172.89, 255,289.74 and 57,847.21

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Solution

The fourth proportional to 170,172.89, 255,289.74 and 57,847.21 is: 86,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,172.89 : 255,289.74 = 57,847.21 : x
  2. Step 2: Convert to fraction form
    170,172.89/255,289.74 = 57,847.21/x
  3. Step 3: Cross multiply
    170,172.89x = 255,289.74 × 57,847.21
  4. Step 4: Simplify right side
    170,172.89x = 14,767,798,562.40
  5. Step 5: Solve for x
    x = 14,767,798,562.40/170,172.89
  6. Step 6: Final answer
    x = 86,781.15

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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.