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Finding the Fourth Proportional to 328,575.86, 492,881.73 and 103,919.52

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Solution

The fourth proportional to 328,575.86, 492,881.73 and 103,919.52 is: 155,884.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,575.86 : 492,881.73 = 103,919.52 : x
  2. Step 2: Convert to fraction form
    328,575.86/492,881.73 = 103,919.52/x
  3. Step 3: Cross multiply
    328,575.86x = 492,881.73 × 103,919.52
  4. Step 4: Simplify right side
    328,575.86x = 51,220,034,256.98
  5. Step 5: Solve for x
    x = 51,220,034,256.98/328,575.86
  6. Step 6: Final answer
    x = 155,884.96

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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.