Home / 209,399.74-288,970.23-118,773.34

Finding the Fourth Proportional to 209,399.74, 288,970.23 and 118,773.34

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Solution

The fourth proportional to 209,399.74, 288,970.23 and 118,773.34 is: 163,906.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,399.74 : 288,970.23 = 118,773.34 : x
  2. Step 2: Convert to fraction form
    209,399.74/288,970.23 = 118,773.34/x
  3. Step 3: Cross multiply
    209,399.74x = 288,970.23 × 118,773.34
  4. Step 4: Simplify right side
    209,399.74x = 34,321,959,377.67
  5. Step 5: Solve for x
    x = 34,321,959,377.67/209,399.74
  6. Step 6: Final answer
    x = 163,906.41

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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.