Finding the Fourth Proportional to 292,691.84, 403,913.40 and 158,555.84
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Solution
The fourth proportional to 292,691.84, 403,913.40 and 158,555.84 is: 218,806.33
Step by Step Solution
- Step 1: Write the proportion equation
292,691.84 : 403,913.40 = 158,555.84 : x - Step 2: Convert to fraction form
292,691.84/403,913.40 = 158,555.84/x - Step 3: Cross multiply
292,691.84x = 403,913.40 × 158,555.84 - Step 4: Simplify right side
292,691.84x = 64,042,828,424.26 - Step 5: Solve for x
x = 64,042,828,424.26/292,691.84 - Step 6: Final answer
x = 218,806.33
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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.