Finding the Fourth Proportional to 516,164.18, 712,420.43 and 286,800.26
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Solution
The fourth proportional to 516,164.18, 712,420.43 and 286,800.26 is: 395,847.62
Step by Step Solution
- Step 1: Write the proportion equation
516,164.18 : 712,420.43 = 286,800.26 : x - Step 2: Convert to fraction form
516,164.18/712,420.43 = 286,800.26/x - Step 3: Cross multiply
516,164.18x = 712,420.43 × 286,800.26 - Step 4: Simplify right side
516,164.18x = 204,322,359,557.21 - Step 5: Solve for x
x = 204,322,359,557.21/516,164.18 - Step 6: Final answer
x = 395,847.62
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.