Finding the Fourth Proportional to 251,208.84, 346,668.12 and 138,038.88
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Solution
The fourth proportional to 251,208.84, 346,668.12 and 138,038.88 is: 190,493.61
Step by Step Solution
- Step 1: Write the proportion equation
251,208.84 : 346,668.12 = 138,038.88 : x - Step 2: Convert to fraction form
251,208.84/346,668.12 = 138,038.88/x - Step 3: Cross multiply
251,208.84x = 346,668.12 × 138,038.88 - Step 4: Simplify right side
251,208.84x = 47,853,679,016.51 - Step 5: Solve for x
x = 47,853,679,016.51/251,208.84 - Step 6: Final answer
x = 190,493.61
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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.