Finding the Fourth Proportional to 211,321.52, 291,653.60 and 130,774.99
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Solution
The fourth proportional to 211,321.52, 291,653.60 and 130,774.99 is: 180,487.98
Step by Step Solution
- Step 1: Write the proportion equation
211,321.52 : 291,653.60 = 130,774.99 : x - Step 2: Convert to fraction form
211,321.52/291,653.60 = 130,774.99/x - Step 3: Cross multiply
211,321.52x = 291,653.60 × 130,774.99 - Step 4: Simplify right side
211,321.52x = 38,140,994,511.32 - Step 5: Solve for x
x = 38,140,994,511.32/211,321.52 - Step 6: Final answer
x = 180,487.98
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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.