Home / 259,735.40-389,603.10-165,732.20

Finding the Fourth Proportional to 259,735.40, 389,603.10 and 165,732.20

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Solution

The fourth proportional to 259,735.40, 389,603.10 and 165,732.20 is: 248,598.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,735.40 : 389,603.10 = 165,732.20 : x
  2. Step 2: Convert to fraction form
    259,735.40/389,603.10 = 165,732.20/x
  3. Step 3: Cross multiply
    259,735.40x = 389,603.10 × 165,732.20
  4. Step 4: Simplify right side
    259,735.40x = 64,569,778,889.82
  5. Step 5: Solve for x
    x = 64,569,778,889.82/259,735.40
  6. Step 6: Final answer
    x = 248,598.30

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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.