Finding the Fourth Proportional to 455,239.10, 628,226.88 and 248,506.65
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Solution
The fourth proportional to 455,239.10, 628,226.88 and 248,506.65 is: 342,937.50
Step by Step Solution
- Step 1: Write the proportion equation
455,239.10 : 628,226.88 = 248,506.65 : x - Step 2: Convert to fraction form
455,239.10/628,226.88 = 248,506.65/x - Step 3: Cross multiply
455,239.10x = 628,226.88 × 248,506.65 - Step 4: Simplify right side
455,239.10x = 156,118,557,388.75 - Step 5: Solve for x
x = 156,118,557,388.75/455,239.10 - Step 6: Final answer
x = 342,937.50
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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.