Finding the Fourth Proportional to 316,663.46, 436,985.79 and 173,419.82
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Solution
The fourth proportional to 316,663.46, 436,985.79 and 173,419.82 is: 239,313.99
Step by Step Solution
- Step 1: Write the proportion equation
316,663.46 : 436,985.79 = 173,419.82 : x - Step 2: Convert to fraction form
316,663.46/436,985.79 = 173,419.82/x - Step 3: Cross multiply
316,663.46x = 436,985.79 × 173,419.82 - Step 4: Simplify right side
316,663.46x = 75,781,997,044.36 - Step 5: Solve for x
x = 75,781,997,044.36/316,663.46 - Step 6: Final answer
x = 239,313.99
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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.