Finding the Fourth Proportional to 407,933.12, 562,987.68 and 235,858.40
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Solution
The fourth proportional to 407,933.12, 562,987.68 and 235,858.40 is: 325,507.70
Step by Step Solution
- Step 1: Write the proportion equation
407,933.12 : 562,987.68 = 235,858.40 : x - Step 2: Convert to fraction form
407,933.12/562,987.68 = 235,858.40/x - Step 3: Cross multiply
407,933.12x = 562,987.68 × 235,858.40 - Step 4: Simplify right side
407,933.12x = 132,785,373,424.51 - Step 5: Solve for x
x = 132,785,373,424.51/407,933.12 - Step 6: Final answer
x = 325,507.70
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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.