Home / 388,317.48-582,475.72-122,101.28

Finding the Fourth Proportional to 388,317.48, 582,475.72 and 122,101.28

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Solution

The fourth proportional to 388,317.48, 582,475.72 and 122,101.28 is: 183,151.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,317.48 : 582,475.72 = 122,101.28 : x
  2. Step 2: Convert to fraction form
    388,317.48/582,475.72 = 122,101.28/x
  3. Step 3: Cross multiply
    388,317.48x = 582,475.72 × 122,101.28
  4. Step 4: Simplify right side
    388,317.48x = 71,121,030,980.92
  5. Step 5: Solve for x
    x = 71,121,030,980.92/388,317.48
  6. Step 6: Final answer
    x = 183,151.76

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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.