Home / 247,971.90-342,394.32-190,520.09

Finding the Fourth Proportional to 247,971.90, 342,394.32 and 190,520.09

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Solution

The fourth proportional to 247,971.90, 342,394.32 and 190,520.09 is: 263,066.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,971.90 : 342,394.32 = 190,520.09 : x
  2. Step 2: Convert to fraction form
    247,971.90/342,394.32 = 190,520.09/x
  3. Step 3: Cross multiply
    247,971.90x = 342,394.32 × 190,520.09
  4. Step 4: Simplify right side
    247,971.90x = 65,232,996,661.89
  5. Step 5: Solve for x
    x = 65,232,996,661.89/247,971.90
  6. Step 6: Final answer
    x = 263,066.08

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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.