Home / 209,922.80-314,884.20-115,444.40

Finding the Fourth Proportional to 209,922.80, 314,884.20 and 115,444.40

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Solution

The fourth proportional to 209,922.80, 314,884.20 and 115,444.40 is: 173,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,922.80 : 314,884.20 = 115,444.40 : x
  2. Step 2: Convert to fraction form
    209,922.80/314,884.20 = 115,444.40/x
  3. Step 3: Cross multiply
    209,922.80x = 314,884.20 × 115,444.40
  4. Step 4: Simplify right side
    209,922.80x = 36,351,617,538.48
  5. Step 5: Solve for x
    x = 36,351,617,538.48/209,922.80
  6. Step 6: Final answer
    x = 173,166.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.