Home / 388,127.35-582,215.73-121,898.37

Finding the Fourth Proportional to 388,127.35, 582,215.73 and 121,898.37

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Solution

The fourth proportional to 388,127.35, 582,215.73 and 121,898.37 is: 182,855.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,127.35 : 582,215.73 = 121,898.37 : x
  2. Step 2: Convert to fraction form
    388,127.35/582,215.73 = 121,898.37/x
  3. Step 3: Cross multiply
    388,127.35x = 582,215.73 × 121,898.37
  4. Step 4: Simplify right side
    388,127.35x = 70,971,148,475.36
  5. Step 5: Solve for x
    x = 70,971,148,475.36/388,127.35
  6. Step 6: Final answer
    x = 182,855.31

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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.