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Finding the Fourth Proportional to 328,444.92, 492,741.09 and 103,818.42

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Solution

The fourth proportional to 328,444.92, 492,741.09 and 103,818.42 is: 155,750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,444.92 : 492,741.09 = 103,818.42 : x
  2. Step 2: Convert to fraction form
    328,444.92/492,741.09 = 103,818.42/x
  3. Step 3: Cross multiply
    328,444.92x = 492,741.09 × 103,818.42
  4. Step 4: Simplify right side
    328,444.92x = 51,155,601,432.88
  5. Step 5: Solve for x
    x = 51,155,601,432.88/328,444.92
  6. Step 6: Final answer
    x = 155,750.93

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1.5x scale

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.