Home / 388,005.48-582,106.59-121,768.26

Finding the Fourth Proportional to 388,005.48, 582,106.59 and 121,768.26

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Solution

The fourth proportional to 388,005.48, 582,106.59 and 121,768.26 is: 182,683.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,005.48 : 582,106.59 = 121,768.26 : x
  2. Step 2: Convert to fraction form
    388,005.48/582,106.59 = 121,768.26/x
  3. Step 3: Cross multiply
    388,005.48x = 582,106.59 × 121,768.26
  4. Step 4: Simplify right side
    388,005.48x = 70,882,106,598.83
  5. Step 5: Solve for x
    x = 70,882,106,598.83/388,005.48
  6. Step 6: Final answer
    x = 182,683.26

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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.