Finding the Fourth Proportional to 664,869.18, 997,303.70 and 166,233.18
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Solution
The fourth proportional to 664,869.18, 997,303.70 and 166,233.18 is: 249,349.75
Step by Step Solution
- Step 1: Write the proportion equation
664,869.18 : 997,303.70 = 166,233.18 : x - Step 2: Convert to fraction form
664,869.18/997,303.70 = 166,233.18/x - Step 3: Cross multiply
664,869.18x = 997,303.70 × 166,233.18 - Step 4: Simplify right side
664,869.18x = 165,784,965,476.77 - Step 5: Solve for x
x = 165,784,965,476.77/664,869.18 - Step 6: Final answer
x = 249,349.75
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Double scale
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Similar ratio
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1.5x scale
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.