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Finding the Fourth Proportional to 201,107.40, 301,401.90 and 154,127.40

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Solution

The fourth proportional to 201,107.40, 301,401.90 and 154,127.40 is: 230,992.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,107.40 : 301,401.90 = 154,127.40 : x
  2. Step 2: Convert to fraction form
    201,107.40/301,401.90 = 154,127.40/x
  3. Step 3: Cross multiply
    201,107.40x = 301,401.90 × 154,127.40
  4. Step 4: Simplify right side
    201,107.40x = 46,454,291,202.06
  5. Step 5: Solve for x
    x = 46,454,291,202.06/201,107.40
  6. Step 6: Final answer
    x = 230,992.45

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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.