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Finding the Fourth Proportional to 328,637.96, 492,907.59 and 103,969.19

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Solution

The fourth proportional to 328,637.96, 492,907.59 and 103,969.19 is: 155,938.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,637.96 : 492,907.59 = 103,969.19 : x
  2. Step 2: Convert to fraction form
    328,637.96/492,907.59 = 103,969.19/x
  3. Step 3: Cross multiply
    328,637.96x = 492,907.59 × 103,969.19
  4. Step 4: Simplify right side
    328,637.96x = 51,247,204,109.42
  5. Step 5: Solve for x
    x = 51,247,204,109.42/328,637.96
  6. Step 6: Final answer
    x = 155,938.18

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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.