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Finding the Fourth Proportional to 328,065.33, 492,098.01 and 78,747.33

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Solution

The fourth proportional to 328,065.33, 492,098.01 and 78,747.33 is: 118,121.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,065.33 : 492,098.01 = 78,747.33 : x
  2. Step 2: Convert to fraction form
    328,065.33/492,098.01 = 78,747.33/x
  3. Step 3: Cross multiply
    328,065.33x = 492,098.01 × 78,747.33
  4. Step 4: Simplify right side
    328,065.33x = 38,751,404,385.81
  5. Step 5: Solve for x
    x = 38,751,404,385.81/328,065.33
  6. Step 6: Final answer
    x = 118,121.00

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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.