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Finding the Fourth Proportional to 367,639.40, 551,459.10 and 181,015.40

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Solution

The fourth proportional to 367,639.40, 551,459.10 and 181,015.40 is: 271,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,639.40 : 551,459.10 = 181,015.40 : x
  2. Step 2: Convert to fraction form
    367,639.40/551,459.10 = 181,015.40/x
  3. Step 3: Cross multiply
    367,639.40x = 551,459.10 × 181,015.40
  4. Step 4: Simplify right side
    367,639.40x = 99,822,589,570.14
  5. Step 5: Solve for x
    x = 99,822,589,570.14/367,639.40
  6. Step 6: Final answer
    x = 271,523.10

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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.