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Finding the Fourth Proportional to 189,090.40, 283,635.60 and 165,762.40

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Solution

The fourth proportional to 189,090.40, 283,635.60 and 165,762.40 is: 248,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,090.40 : 283,635.60 = 165,762.40 : x
  2. Step 2: Convert to fraction form
    189,090.40/283,635.60 = 165,762.40/x
  3. Step 3: Cross multiply
    189,090.40x = 283,635.60 × 165,762.40
  4. Step 4: Simplify right side
    189,090.40x = 47,016,117,781.44
  5. Step 5: Solve for x
    x = 47,016,117,781.44/189,090.40
  6. Step 6: Final answer
    x = 248,643.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.