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Finding the Fourth Proportional to 201,218.90, 301,828.35 and 154,562.90

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Solution

The fourth proportional to 201,218.90, 301,828.35 and 154,562.90 is: 231,844.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,218.90 : 301,828.35 = 154,562.90 : x
  2. Step 2: Convert to fraction form
    201,218.90/301,828.35 = 154,562.90/x
  3. Step 3: Cross multiply
    201,218.90x = 301,828.35 × 154,562.90
  4. Step 4: Simplify right side
    201,218.90x = 46,651,465,078.22
  5. Step 5: Solve for x
    x = 46,651,465,078.22/201,218.90
  6. Step 6: Final answer
    x = 231,844.35

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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.