Home / 209,235.12-288,738.40-118,599.44

Finding the Fourth Proportional to 209,235.12, 288,738.40 and 118,599.44

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Solution

The fourth proportional to 209,235.12, 288,738.40 and 118,599.44 is: 163,663.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,235.12 : 288,738.40 = 118,599.44 : x
  2. Step 2: Convert to fraction form
    209,235.12/288,738.40 = 118,599.44/x
  3. Step 3: Cross multiply
    209,235.12x = 288,738.40 × 118,599.44
  4. Step 4: Simplify right side
    209,235.12x = 34,244,212,546.50
  5. Step 5: Solve for x
    x = 34,244,212,546.50/209,235.12
  6. Step 6: Final answer
    x = 163,663.79

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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.