Finding the Fourth Proportional to 285,626.12, 425,885.60 and 277,779.08
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Solution
The fourth proportional to 285,626.12, 425,885.60 and 277,779.08 is: 414,185.19
Step by Step Solution
- Step 1: Write the proportion equation
285,626.12 : 425,885.60 = 277,779.08 : x - Step 2: Convert to fraction form
285,626.12/425,885.60 = 277,779.08/x - Step 3: Cross multiply
285,626.12x = 425,885.60 × 277,779.08 - Step 4: Simplify right side
285,626.12x = 118,302,110,153.25 - Step 5: Solve for x
x = 118,302,110,153.25/285,626.12 - Step 6: Final answer
x = 414,185.19
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.