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Finding the Fourth Proportional to 143,462.00, 215,205.05 and 43,623.07

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Solution

The fourth proportional to 143,462.00, 215,205.05 and 43,623.07 is: 65,438.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,462.00 : 215,205.05 = 43,623.07 : x
  2. Step 2: Convert to fraction form
    143,462.00/215,205.05 = 43,623.07/x
  3. Step 3: Cross multiply
    143,462.00x = 215,205.05 × 43,623.07
  4. Step 4: Simplify right side
    143,462.00x = 9,387,904,531.55
  5. Step 5: Solve for x
    x = 9,387,904,531.55/143,462.00
  6. Step 6: Final answer
    x = 65,438.26

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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.