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Finding the Fourth Proportional to 231,303.88, 319,163.10 and 134,529.16

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Solution

The fourth proportional to 231,303.88, 319,163.10 and 134,529.16 is: 185,629.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,303.88 : 319,163.10 = 134,529.16 : x
  2. Step 2: Convert to fraction form
    231,303.88/319,163.10 = 134,529.16/x
  3. Step 3: Cross multiply
    231,303.88x = 319,163.10 × 134,529.16
  4. Step 4: Simplify right side
    231,303.88x = 42,936,743,746.00
  5. Step 5: Solve for x
    x = 42,936,743,746.00/231,303.88
  6. Step 6: Final answer
    x = 185,629.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.