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Finding the Fourth Proportional to 401,552.64, 602,445.60 and 191,367.36

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Solution

The fourth proportional to 401,552.64, 602,445.60 and 191,367.36 is: 287,106.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,552.64 : 602,445.60 = 191,367.36 : x
  2. Step 2: Convert to fraction form
    401,552.64/602,445.60 = 191,367.36/x
  3. Step 3: Cross multiply
    401,552.64x = 602,445.60 × 191,367.36
  4. Step 4: Simplify right side
    401,552.64x = 115,288,424,015.62
  5. Step 5: Solve for x
    x = 115,288,424,015.62/401,552.64
  6. Step 6: Final answer
    x = 287,106.63

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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.