Home / 402,376.48-555,071.32-273,321.60

Finding the Fourth Proportional to 402,376.48, 555,071.32 and 273,321.60

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Solution

The fourth proportional to 402,376.48, 555,071.32 and 273,321.60 is: 377,042.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,376.48 : 555,071.32 = 273,321.60 : x
  2. Step 2: Convert to fraction form
    402,376.48/555,071.32 = 273,321.60/x
  3. Step 3: Cross multiply
    402,376.48x = 555,071.32 × 273,321.60
  4. Step 4: Simplify right side
    402,376.48x = 151,712,981,296.51
  5. Step 5: Solve for x
    x = 151,712,981,296.51/402,376.48
  6. Step 6: Final answer
    x = 377,042.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.