Finding the Fourth Proportional to 420,887.75, 631,331.55 and 154,533.02
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Solution
The fourth proportional to 420,887.75, 631,331.55 and 154,533.02 is: 231,799.50
Step by Step Solution
- Step 1: Write the proportion equation
420,887.75 : 631,331.55 = 154,533.02 : x - Step 2: Convert to fraction form
420,887.75/631,331.55 = 154,533.02/x - Step 3: Cross multiply
420,887.75x = 631,331.55 × 154,533.02 - Step 4: Simplify right side
420,887.75x = 97,561,567,886.12 - Step 5: Solve for x
x = 97,561,567,886.12/420,887.75 - Step 6: Final answer
x = 231,799.50
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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.