Home / 209,968.80-314,953.20-198,596.40

Finding the Fourth Proportional to 209,968.80, 314,953.20 and 198,596.40

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Solution

The fourth proportional to 209,968.80, 314,953.20 and 198,596.40 is: 297,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,968.80 : 314,953.20 = 198,596.40 : x
  2. Step 2: Convert to fraction form
    209,968.80/314,953.20 = 198,596.40/x
  3. Step 3: Cross multiply
    209,968.80x = 314,953.20 × 198,596.40
  4. Step 4: Simplify right side
    209,968.80x = 62,548,571,688.48
  5. Step 5: Solve for x
    x = 62,548,571,688.48/209,968.80
  6. Step 6: Final answer
    x = 297,894.60

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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.