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Finding the Fourth Proportional to 328,165.48, 492,362.78 and 103,560.68

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Solution

The fourth proportional to 328,165.48, 492,362.78 and 103,560.68 is: 155,377.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,165.48 : 492,362.78 = 103,560.68 : x
  2. Step 2: Convert to fraction form
    328,165.48/492,362.78 = 103,560.68/x
  3. Step 3: Cross multiply
    328,165.48x = 492,362.78 × 103,560.68
  4. Step 4: Simplify right side
    328,165.48x = 50,989,424,303.49
  5. Step 5: Solve for x
    x = 50,989,424,303.49/328,165.48
  6. Step 6: Final answer
    x = 155,377.17

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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.