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Finding the Fourth Proportional to 298,887.48, 448,429.64 and 121,346.82

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Solution

The fourth proportional to 298,887.48, 448,429.64 and 121,346.82 is: 182,060.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,887.48 : 448,429.64 = 121,346.82 : x
  2. Step 2: Convert to fraction form
    298,887.48/448,429.64 = 121,346.82/x
  3. Step 3: Cross multiply
    298,887.48x = 448,429.64 × 121,346.82
  4. Step 4: Simplify right side
    298,887.48x = 54,415,509,963.67
  5. Step 5: Solve for x
    x = 54,415,509,963.67/298,887.48
  6. Step 6: Final answer
    x = 182,060.19

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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.