Home / 268,784.10-403,003.35-111,075.30

Finding the Fourth Proportional to 268,784.10, 403,003.35 and 111,075.30

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Solution

The fourth proportional to 268,784.10, 403,003.35 and 111,075.30 is: 166,541.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,784.10 : 403,003.35 = 111,075.30 : x
  2. Step 2: Convert to fraction form
    268,784.10/403,003.35 = 111,075.30/x
  3. Step 3: Cross multiply
    268,784.10x = 403,003.35 × 111,075.30
  4. Step 4: Simplify right side
    268,784.10x = 44,763,718,002.26
  5. Step 5: Solve for x
    x = 44,763,718,002.26/268,784.10
  6. Step 6: Final answer
    x = 166,541.54

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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.