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Finding the Fourth Proportional to 328,655.88, 493,040.52 and 104,012.64

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Solution

The fourth proportional to 328,655.88, 493,040.52 and 104,012.64 is: 156,036.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,655.88 : 493,040.52 = 104,012.64 : x
  2. Step 2: Convert to fraction form
    328,655.88/493,040.52 = 104,012.64/x
  3. Step 3: Cross multiply
    328,655.88x = 493,040.52 × 104,012.64
  4. Step 4: Simplify right side
    328,655.88x = 51,282,446,112.17
  5. Step 5: Solve for x
    x = 51,282,446,112.17/328,655.88
  6. Step 6: Final answer
    x = 156,036.90

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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.