Home / 341,428.40-511,743.83-256,916.91

Finding the Fourth Proportional to 341,428.40, 511,743.83 and 256,916.91

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Solution

The fourth proportional to 341,428.40, 511,743.83 and 256,916.91 is: 385,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,428.40 : 511,743.83 = 256,916.91 : x
  2. Step 2: Convert to fraction form
    341,428.40/511,743.83 = 256,916.91/x
  3. Step 3: Cross multiply
    341,428.40x = 511,743.83 × 256,916.91
  4. Step 4: Simplify right side
    341,428.40x = 131,475,642,230.58
  5. Step 5: Solve for x
    x = 131,475,642,230.58/341,428.40
  6. Step 6: Final answer
    x = 385,075.30

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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.