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Finding the Fourth Proportional to 429,241.08, 643,873.80 and 113,698.02

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Solution

The fourth proportional to 429,241.08, 643,873.80 and 113,698.02 is: 170,550.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,241.08 : 643,873.80 = 113,698.02 : x
  2. Step 2: Convert to fraction form
    429,241.08/643,873.80 = 113,698.02/x
  3. Step 3: Cross multiply
    429,241.08x = 643,873.80 × 113,698.02
  4. Step 4: Simplify right side
    429,241.08x = 73,207,176,189.88
  5. Step 5: Solve for x
    x = 73,207,176,189.88/429,241.08
  6. Step 6: Final answer
    x = 170,550.26

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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.