Home / 301,789.13-451,994.72-144,128.30

Finding the Fourth Proportional to 301,789.13, 451,994.72 and 144,128.30

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Solution

The fourth proportional to 301,789.13, 451,994.72 and 144,128.30 is: 215,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,789.13 : 451,994.72 = 144,128.30 : x
  2. Step 2: Convert to fraction form
    301,789.13/451,994.72 = 144,128.30/x
  3. Step 3: Cross multiply
    301,789.13x = 451,994.72 × 144,128.30
  4. Step 4: Simplify right side
    301,789.13x = 65,145,227,621.96
  5. Step 5: Solve for x
    x = 65,145,227,621.96/301,789.13
  6. Step 6: Final answer
    x = 215,863.40

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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.