Finding the Fourth Proportional to 261,890.08, 361,408.40 and 142,658.08
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Solution
The fourth proportional to 261,890.08, 361,408.40 and 142,658.08 is: 196,868.20
Step by Step Solution
- Step 1: Write the proportion equation
261,890.08 : 361,408.40 = 142,658.08 : x - Step 2: Convert to fraction form
261,890.08/361,408.40 = 142,658.08/x - Step 3: Cross multiply
261,890.08x = 361,408.40 × 142,658.08 - Step 4: Simplify right side
261,890.08x = 51,557,828,439.87 - Step 5: Solve for x
x = 51,557,828,439.87/261,890.08 - Step 6: Final answer
x = 196,868.20
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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.