Home / 211,522.31-291,735.81-130,994.54

Finding the Fourth Proportional to 211,522.31, 291,735.81 and 130,994.54

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Solution

The fourth proportional to 211,522.31, 291,735.81 and 130,994.54 is: 180,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,522.31 : 291,735.81 = 130,994.54 : x
  2. Step 2: Convert to fraction form
    211,522.31/291,735.81 = 130,994.54/x
  3. Step 3: Cross multiply
    211,522.31x = 291,735.81 × 130,994.54
  4. Step 4: Simplify right side
    211,522.31x = 38,215,798,232.48
  5. Step 5: Solve for x
    x = 38,215,798,232.48/211,522.31
  6. Step 6: Final answer
    x = 180,670.30

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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.