Home / 209,218.40-288,787.44-133,767.20

Finding the Fourth Proportional to 209,218.40, 288,787.44 and 133,767.20

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Solution

The fourth proportional to 209,218.40, 288,787.44 and 133,767.20 is: 184,640.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,218.40 : 288,787.44 = 133,767.20 : x
  2. Step 2: Convert to fraction form
    209,218.40/288,787.44 = 133,767.20/x
  3. Step 3: Cross multiply
    209,218.40x = 288,787.44 × 133,767.20
  4. Step 4: Simplify right side
    209,218.40x = 38,630,287,243.97
  5. Step 5: Solve for x
    x = 38,630,287,243.97/209,218.40
  6. Step 6: Final answer
    x = 184,640.96

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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.