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Finding the Fourth Proportional to 298,888.76, 448,339.28 and 121,274.29

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Solution

The fourth proportional to 298,888.76, 448,339.28 and 121,274.29 is: 181,913.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,888.76 : 448,339.28 = 121,274.29 : x
  2. Step 2: Convert to fraction form
    298,888.76/448,339.28 = 121,274.29/x
  3. Step 3: Cross multiply
    298,888.76x = 448,339.28 × 121,274.29
  4. Step 4: Simplify right side
    298,888.76x = 54,372,027,861.11
  5. Step 5: Solve for x
    x = 54,372,027,861.11/298,888.76
  6. Step 6: Final answer
    x = 181,913.93

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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.