Home / 388,259.90-582,530.01-135,577.64

Finding the Fourth Proportional to 388,259.90, 582,530.01 and 135,577.64

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Solution

The fourth proportional to 388,259.90, 582,530.01 and 135,577.64 is: 203,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,259.90 : 582,530.01 = 135,577.64 : x
  2. Step 2: Convert to fraction form
    388,259.90/582,530.01 = 135,577.64/x
  3. Step 3: Cross multiply
    388,259.90x = 582,530.01 × 135,577.64
  4. Step 4: Simplify right side
    388,259.90x = 78,978,043,984.98
  5. Step 5: Solve for x
    x = 78,978,043,984.98/388,259.90
  6. Step 6: Final answer
    x = 203,415.40

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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.