Home / 643,741.12-965,675.40-223,014.16

Finding the Fourth Proportional to 643,741.12, 965,675.40 and 223,014.16

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Solution

The fourth proportional to 643,741.12, 965,675.40 and 223,014.16 is: 334,543.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,741.12 : 965,675.40 = 223,014.16 : x
  2. Step 2: Convert to fraction form
    643,741.12/965,675.40 = 223,014.16/x
  3. Step 3: Cross multiply
    643,741.12x = 965,675.40 × 223,014.16
  4. Step 4: Simplify right side
    643,741.12x = 215,359,288,163.66
  5. Step 5: Solve for x
    x = 215,359,288,163.66/643,741.12
  6. Step 6: Final answer
    x = 334,543.31

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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.