Home / 261,911.36-361,428.12-160,107.32

Finding the Fourth Proportional to 261,911.36, 361,428.12 and 160,107.32

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Solution

The fourth proportional to 261,911.36, 361,428.12 and 160,107.32 is: 220,942.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,911.36 : 361,428.12 = 160,107.32 : x
  2. Step 2: Convert to fraction form
    261,911.36/361,428.12 = 160,107.32/x
  3. Step 3: Cross multiply
    261,911.36x = 361,428.12 × 160,107.32
  4. Step 4: Simplify right side
    261,911.36x = 57,867,287,665.84
  5. Step 5: Solve for x
    x = 57,867,287,665.84/261,911.36
  6. Step 6: Final answer
    x = 220,942.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.