Home / 211,181.84-291,320.52-130,583.60

Finding the Fourth Proportional to 211,181.84, 291,320.52 and 130,583.60

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Solution

The fourth proportional to 211,181.84, 291,320.52 and 130,583.60 is: 180,137.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,181.84 : 291,320.52 = 130,583.60 : x
  2. Step 2: Convert to fraction form
    211,181.84/291,320.52 = 130,583.60/x
  3. Step 3: Cross multiply
    211,181.84x = 291,320.52 × 130,583.60
  4. Step 4: Simplify right side
    211,181.84x = 38,041,682,255.47
  5. Step 5: Solve for x
    x = 38,041,682,255.47/211,181.84
  6. Step 6: Final answer
    x = 180,137.09

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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.