Home / 298,720.08-447,857.52-130,208.40

Finding the Fourth Proportional to 298,720.08, 447,857.52 and 130,208.40

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Solution

The fourth proportional to 298,720.08, 447,857.52 and 130,208.40 is: 195,215.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,720.08 : 447,857.52 = 130,208.40 : x
  2. Step 2: Convert to fraction form
    298,720.08/447,857.52 = 130,208.40/x
  3. Step 3: Cross multiply
    298,720.08x = 447,857.52 × 130,208.40
  4. Step 4: Simplify right side
    298,720.08x = 58,314,811,107.17
  5. Step 5: Solve for x
    x = 58,314,811,107.17/298,720.08
  6. Step 6: Final answer
    x = 195,215.57

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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.