Finding the Fourth Proportional to 408,508.74, 612,779.58 and 142,296.17
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Solution
The fourth proportional to 408,508.74, 612,779.58 and 142,296.17 is: 213,449.98
Step by Step Solution
- Step 1: Write the proportion equation
408,508.74 : 612,779.58 = 142,296.17 : x - Step 2: Convert to fraction form
408,508.74/612,779.58 = 142,296.17/x - Step 3: Cross multiply
408,508.74x = 612,779.58 × 142,296.17 - Step 4: Simplify right side
408,508.74x = 87,196,184,224.31 - Step 5: Solve for x
x = 87,196,184,224.31/408,508.74 - Step 6: Final answer
x = 213,449.98
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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.