Finding the Fourth Proportional to 389,175.77, 537,061.68 and 219,408.68
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Solution
The fourth proportional to 389,175.77, 537,061.68 and 219,408.68 is: 302,783.48
Step by Step Solution
- Step 1: Write the proportion equation
389,175.77 : 537,061.68 = 219,408.68 : x - Step 2: Convert to fraction form
389,175.77/537,061.68 = 219,408.68/x - Step 3: Cross multiply
389,175.77x = 537,061.68 × 219,408.68 - Step 4: Simplify right side
389,175.77x = 117,835,995,630.04 - Step 5: Solve for x
x = 117,835,995,630.04/389,175.77 - Step 6: Final answer
x = 302,783.48
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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.