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Finding the Fourth Proportional to 328,353.28, 492,557.84 and 103,653.60

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Solution

The fourth proportional to 328,353.28, 492,557.84 and 103,653.60 is: 155,489.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,353.28 : 492,557.84 = 103,653.60 : x
  2. Step 2: Convert to fraction form
    328,353.28/492,557.84 = 103,653.60/x
  3. Step 3: Cross multiply
    328,353.28x = 492,557.84 × 103,653.60
  4. Step 4: Simplify right side
    328,353.28x = 51,055,393,324.22
  5. Step 5: Solve for x
    x = 51,055,393,324.22/328,353.28
  6. Step 6: Final answer
    x = 155,489.21

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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.