Home / 209,111.63-288,442.37-166,771.31

Finding the Fourth Proportional to 209,111.63, 288,442.37 and 166,771.31

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Solution

The fourth proportional to 209,111.63, 288,442.37 and 166,771.31 is: 230,039.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,111.63 : 288,442.37 = 166,771.31 : x
  2. Step 2: Convert to fraction form
    209,111.63/288,442.37 = 166,771.31/x
  3. Step 3: Cross multiply
    209,111.63x = 288,442.37 × 166,771.31
  4. Step 4: Simplify right side
    209,111.63x = 48,103,909,941.03
  5. Step 5: Solve for x
    x = 48,103,909,941.03/209,111.63
  6. Step 6: Final answer
    x = 230,039.39

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1.5x scale

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.