Finding the Fourth Proportional to 316,587.84, 436,891.12 and 173,347.84
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Solution
The fourth proportional to 316,587.84, 436,891.12 and 173,347.84 is: 239,219.96
Step by Step Solution
- Step 1: Write the proportion equation
316,587.84 : 436,891.12 = 173,347.84 : x - Step 2: Convert to fraction form
316,587.84/436,891.12 = 173,347.84/x - Step 3: Cross multiply
316,587.84x = 436,891.12 × 173,347.84 - Step 4: Simplify right side
316,587.84x = 75,734,131,967.18 - Step 5: Solve for x
x = 75,734,131,967.18/316,587.84 - Step 6: Final answer
x = 239,219.96
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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.