Finding the Fourth Proportional to 405,372.96, 559,465.98 and 235,574.28
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Solution
The fourth proportional to 405,372.96, 559,465.98 and 235,574.28 is: 325,122.32
Step by Step Solution
- Step 1: Write the proportion equation
405,372.96 : 559,465.98 = 235,574.28 : x - Step 2: Convert to fraction form
405,372.96/559,465.98 = 235,574.28/x - Step 3: Cross multiply
405,372.96x = 559,465.98 × 235,574.28 - Step 4: Simplify right side
405,372.96x = 131,795,795,422.99 - Step 5: Solve for x
x = 131,795,795,422.99/405,372.96 - Step 6: Final answer
x = 325,122.32
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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.