Home / 215,855.60-323,643.24-103,533.20

Finding the Fourth Proportional to 215,855.60, 323,643.24 and 103,533.20

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Solution

The fourth proportional to 215,855.60, 323,643.24 and 103,533.20 is: 155,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,855.60 : 323,643.24 = 103,533.20 : x
  2. Step 2: Convert to fraction form
    215,855.60/323,643.24 = 103,533.20/x
  3. Step 3: Cross multiply
    215,855.60x = 323,643.24 × 103,533.20
  4. Step 4: Simplify right side
    215,855.60x = 33,507,820,295.57
  5. Step 5: Solve for x
    x = 33,507,820,295.57/215,855.60
  6. Step 6: Final answer
    x = 155,232.57

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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.