Home / 211,147.26-291,383.30-115,657.40

Finding the Fourth Proportional to 211,147.26, 291,383.30 and 115,657.40

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Solution

The fourth proportional to 211,147.26, 291,383.30 and 115,657.40 is: 159,607.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,147.26 : 291,383.30 = 115,657.40 : x
  2. Step 2: Convert to fraction form
    211,147.26/291,383.30 = 115,657.40/x
  3. Step 3: Cross multiply
    211,147.26x = 291,383.30 × 115,657.40
  4. Step 4: Simplify right side
    211,147.26x = 33,700,634,881.42
  5. Step 5: Solve for x
    x = 33,700,634,881.42/211,147.26
  6. Step 6: Final answer
    x = 159,607.26

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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.