Finding the Fourth Proportional to 576,775.80, 865,163.70 and 156,051.68
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Solution
The fourth proportional to 576,775.80, 865,163.70 and 156,051.68 is: 234,077.51
Step by Step Solution
- Step 1: Write the proportion equation
576,775.80 : 865,163.70 = 156,051.68 : x - Step 2: Convert to fraction form
576,775.80/865,163.70 = 156,051.68/x - Step 3: Cross multiply
576,775.80x = 865,163.70 × 156,051.68 - Step 4: Simplify right side
576,775.80x = 135,010,244,534.20 - Step 5: Solve for x
x = 135,010,244,534.20/576,775.80 - Step 6: Final answer
x = 234,077.51
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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.