Home / 266,203.16-398,091.88-198,782.54

Finding the Fourth Proportional to 266,203.16, 398,091.88 and 198,782.54

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Solution

The fourth proportional to 266,203.16, 398,091.88 and 198,782.54 is: 297,268.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,203.16 : 398,091.88 = 198,782.54 : x
  2. Step 2: Convert to fraction form
    266,203.16/398,091.88 = 198,782.54/x
  3. Step 3: Cross multiply
    266,203.16x = 398,091.88 × 198,782.54
  4. Step 4: Simplify right side
    266,203.16x = 79,133,712,075.40
  5. Step 5: Solve for x
    x = 79,133,712,075.40/266,203.16
  6. Step 6: Final answer
    x = 297,268.12

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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.