Home / 328,355.03-492,560.49-103,655.35

Finding the Fourth Proportional to 328,355.03, 492,560.49 and 103,655.35

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Solution

The fourth proportional to 328,355.03, 492,560.49 and 103,655.35 is: 155,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,355.03 : 492,560.49 = 103,655.35 : x
  2. Step 2: Convert to fraction form
    328,355.03/492,560.49 = 103,655.35/x
  3. Step 3: Cross multiply
    328,355.03x = 492,560.49 × 103,655.35
  4. Step 4: Simplify right side
    328,355.03x = 51,056,529,987.12
  5. Step 5: Solve for x
    x = 51,056,529,987.12/328,355.03
  6. Step 6: Final answer
    x = 155,491.85

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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.