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Finding the Fourth Proportional to 300,028.60, 449,459.70 and 166,670.20

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Solution

The fourth proportional to 300,028.60, 449,459.70 and 166,670.20 is: 249,681.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,028.60 : 449,459.70 = 166,670.20 : x
  2. Step 2: Convert to fraction form
    300,028.60/449,459.70 = 166,670.20/x
  3. Step 3: Cross multiply
    300,028.60x = 449,459.70 × 166,670.20
  4. Step 4: Simplify right side
    300,028.60x = 74,911,538,090.94
  5. Step 5: Solve for x
    x = 74,911,538,090.94/300,028.60
  6. Step 6: Final answer
    x = 249,681.32

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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.