Finding the Fourth Proportional to 421,493.79, 581,649.64 and 230,503.08
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Solution
The fourth proportional to 421,493.79, 581,649.64 and 230,503.08 is: 318,087.80
Step by Step Solution
- Step 1: Write the proportion equation
421,493.79 : 581,649.64 = 230,503.08 : x - Step 2: Convert to fraction form
421,493.79/581,649.64 = 230,503.08/x - Step 3: Cross multiply
421,493.79x = 581,649.64 × 230,503.08 - Step 4: Simplify right side
421,493.79x = 134,072,032,924.63 - Step 5: Solve for x
x = 134,072,032,924.63/421,493.79 - Step 6: Final answer
x = 318,087.80
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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.