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Finding the Fourth Proportional to 328,103.28, 492,220.48 and 103,498.48

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Solution

The fourth proportional to 328,103.28, 492,220.48 and 103,498.48 is: 155,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,103.28 : 492,220.48 = 103,498.48 : x
  2. Step 2: Convert to fraction form
    328,103.28/492,220.48 = 103,498.48/x
  3. Step 3: Cross multiply
    328,103.28x = 492,220.48 × 103,498.48
  4. Step 4: Simplify right side
    328,103.28x = 50,944,071,504.87
  5. Step 5: Solve for x
    x = 50,944,071,504.87/328,103.28
  6. Step 6: Final answer
    x = 155,268.40

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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.