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Finding the Fourth Proportional to 341,268.90, 512,012.70 and 229,075.80

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Solution

The fourth proportional to 341,268.90, 512,012.70 and 229,075.80 is: 343,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,268.90 : 512,012.70 = 229,075.80 : x
  2. Step 2: Convert to fraction form
    341,268.90/512,012.70 = 229,075.80/x
  3. Step 3: Cross multiply
    341,268.90x = 512,012.70 × 229,075.80
  4. Step 4: Simplify right side
    341,268.90x = 117,289,718,862.66
  5. Step 5: Solve for x
    x = 117,289,718,862.66/341,268.90
  6. Step 6: Final answer
    x = 343,687.10

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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.