Home / 259,977.30-390,038.85-110,289.30

Finding the Fourth Proportional to 259,977.30, 390,038.85 and 110,289.30

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Solution

The fourth proportional to 259,977.30, 390,038.85 and 110,289.30 is: 165,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,977.30 : 390,038.85 = 110,289.30 : x
  2. Step 2: Convert to fraction form
    259,977.30/390,038.85 = 110,289.30/x
  3. Step 3: Cross multiply
    259,977.30x = 390,038.85 × 110,289.30
  4. Step 4: Simplify right side
    259,977.30x = 43,017,111,739.31
  5. Step 5: Solve for x
    x = 43,017,111,739.31/259,977.30
  6. Step 6: Final answer
    x = 165,464.88

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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.