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Finding the Fourth Proportional to 143,219.75, 214,960.84 and 142,683.93

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Solution

The fourth proportional to 143,219.75, 214,960.84 and 142,683.93 is: 214,156.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,219.75 : 214,960.84 = 142,683.93 : x
  2. Step 2: Convert to fraction form
    143,219.75/214,960.84 = 142,683.93/x
  3. Step 3: Cross multiply
    143,219.75x = 214,960.84 × 142,683.93
  4. Step 4: Simplify right side
    143,219.75x = 30,671,457,090.59
  5. Step 5: Solve for x
    x = 30,671,457,090.59/143,219.75
  6. Step 6: Final answer
    x = 214,156.62

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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.