Finding the Fourth Proportional to 291,741.84, 437,686.56 and 81,379.62
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Solution
The fourth proportional to 291,741.84, 437,686.56 and 81,379.62 is: 122,090.02
Step by Step Solution
- Step 1: Write the proportion equation
291,741.84 : 437,686.56 = 81,379.62 : x - Step 2: Convert to fraction form
291,741.84/437,686.56 = 81,379.62/x - Step 3: Cross multiply
291,741.84x = 437,686.56 × 81,379.62 - Step 4: Simplify right side
291,741.84x = 35,618,765,931.91 - Step 5: Solve for x
x = 35,618,765,931.91/291,741.84 - Step 6: Final answer
x = 122,090.02
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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.