Home / 259,339.66-389,050.98-109,581.40

Finding the Fourth Proportional to 259,339.66, 389,050.98 and 109,581.40

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Solution

The fourth proportional to 259,339.66, 389,050.98 and 109,581.40 is: 164,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,339.66 : 389,050.98 = 109,581.40 : x
  2. Step 2: Convert to fraction form
    259,339.66/389,050.98 = 109,581.40/x
  3. Step 3: Cross multiply
    259,339.66x = 389,050.98 × 109,581.40
  4. Step 4: Simplify right side
    259,339.66x = 42,632,751,059.77
  5. Step 5: Solve for x
    x = 42,632,751,059.77/259,339.66
  6. Step 6: Final answer
    x = 164,389.63

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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.