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Finding the Fourth Proportional to 143,228.34, 214,768.71 and 64,274.90

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Solution

The fourth proportional to 143,228.34, 214,768.71 and 64,274.90 is: 96,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,228.34 : 214,768.71 = 64,274.90 : x
  2. Step 2: Convert to fraction form
    143,228.34/214,768.71 = 64,274.90/x
  3. Step 3: Cross multiply
    143,228.34x = 214,768.71 × 64,274.90
  4. Step 4: Simplify right side
    143,228.34x = 13,804,236,284.54
  5. Step 5: Solve for x
    x = 13,804,236,284.54/143,228.34
  6. Step 6: Final answer
    x = 96,379.22

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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.