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Finding the Fourth Proportional to 328,241.72, 492,362.58 and 103,759.84

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Solution

The fourth proportional to 328,241.72, 492,362.58 and 103,759.84 is: 155,639.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,241.72 : 492,362.58 = 103,759.84 : x
  2. Step 2: Convert to fraction form
    328,241.72/492,362.58 = 103,759.84/x
  3. Step 3: Cross multiply
    328,241.72x = 492,362.58 × 103,759.84
  4. Step 4: Simplify right side
    328,241.72x = 51,087,462,522.79
  5. Step 5: Solve for x
    x = 51,087,462,522.79/328,241.72
  6. Step 6: Final answer
    x = 155,639.76

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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.