Finding the Fourth Proportional to 212,206.40, 292,746.66 and 127,175.84
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Solution
The fourth proportional to 212,206.40, 292,746.66 and 127,175.84 is: 175,443.82
Step by Step Solution
- Step 1: Write the proportion equation
212,206.40 : 292,746.66 = 127,175.84 : x - Step 2: Convert to fraction form
212,206.40/292,746.66 = 127,175.84/x - Step 3: Cross multiply
212,206.40x = 292,746.66 × 127,175.84 - Step 4: Simplify right side
212,206.40x = 37,230,302,392.69 - Step 5: Solve for x
x = 37,230,302,392.69/212,206.40 - Step 6: Final answer
x = 175,443.82
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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.