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Finding the Fourth Proportional to 371,582.96, 512,696.63 and 218,627.82

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Solution

The fourth proportional to 371,582.96, 512,696.63 and 218,627.82 is: 301,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,582.96 : 512,696.63 = 218,627.82 : x
  2. Step 2: Convert to fraction form
    371,582.96/512,696.63 = 218,627.82/x
  3. Step 3: Cross multiply
    371,582.96x = 512,696.63 × 218,627.82
  4. Step 4: Simplify right side
    371,582.96x = 112,089,745,445.11
  5. Step 5: Solve for x
    x = 112,089,745,445.11/371,582.96
  6. Step 6: Final answer
    x = 301,654.70

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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.