Home / 287,269.08-395,757-199,903.98

Finding the Fourth Proportional to 287,269.08, 395,757 and 199,903.98

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Solution

The fourth proportional to 287,269.08, 395,757 and 199,903.98 is: 275,398.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,269.08 : 395,757 = 199,903.98 : x
  2. Step 2: Convert to fraction form
    287,269.08/395,757 = 199,903.98/x
  3. Step 3: Cross multiply
    287,269.08x = 395,757 × 199,903.98
  4. Step 4: Simplify right side
    287,269.08x = 79,113,399,412.86
  5. Step 5: Solve for x
    x = 79,113,399,412.86/287,269.08
  6. Step 6: Final answer
    x = 275,398.24

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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.