Home / 209,918.80-314,878.20-197,671.60

Finding the Fourth Proportional to 209,918.80, 314,878.20 and 197,671.60

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Solution

The fourth proportional to 209,918.80, 314,878.20 and 197,671.60 is: 296,507.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,918.80 : 314,878.20 = 197,671.60 : x
  2. Step 2: Convert to fraction form
    209,918.80/314,878.20 = 197,671.60/x
  3. Step 3: Cross multiply
    209,918.80x = 314,878.20 × 197,671.60
  4. Step 4: Simplify right side
    209,918.80x = 62,242,477,599.12
  5. Step 5: Solve for x
    x = 62,242,477,599.12/209,918.80
  6. Step 6: Final answer
    x = 296,507.40

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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.