Home / 211,378.80-291,702.66-115,883.44

Finding the Fourth Proportional to 211,378.80, 291,702.66 and 115,883.44

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Solution

The fourth proportional to 211,378.80, 291,702.66 and 115,883.44 is: 159,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,378.80 : 291,702.66 = 115,883.44 : x
  2. Step 2: Convert to fraction form
    211,378.80/291,702.66 = 115,883.44/x
  3. Step 3: Cross multiply
    211,378.80x = 291,702.66 × 115,883.44
  4. Step 4: Simplify right side
    211,378.80x = 33,803,507,697.95
  5. Step 5: Solve for x
    x = 33,803,507,697.95/211,378.80
  6. Step 6: Final answer
    x = 159,919.10

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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.