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Finding the Fourth Proportional to 143,205.17, 214,818.14 and 43,373.15

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Solution

The fourth proportional to 143,205.17, 214,818.14 and 43,373.15 is: 65,062.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,205.17 : 214,818.14 = 43,373.15 : x
  2. Step 2: Convert to fraction form
    143,205.17/214,818.14 = 43,373.15/x
  3. Step 3: Cross multiply
    143,205.17x = 214,818.14 × 43,373.15
  4. Step 4: Simplify right side
    143,205.17x = 9,317,340,457.20
  5. Step 5: Solve for x
    x = 9,317,340,457.20/143,205.17
  6. Step 6: Final answer
    x = 65,062.88

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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.