Finding the Fourth Proportional to 245,682.66, 339,038.10 and 138,252.63
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Solution
The fourth proportional to 245,682.66, 339,038.10 and 138,252.63 is: 190,786.39
Step by Step Solution
- Step 1: Write the proportion equation
245,682.66 : 339,038.10 = 138,252.63 : x - Step 2: Convert to fraction form
245,682.66/339,038.10 = 138,252.63/x - Step 3: Cross multiply
245,682.66x = 339,038.10 × 138,252.63 - Step 4: Simplify right side
245,682.66x = 46,872,908,995.20 - Step 5: Solve for x
x = 46,872,908,995.20/245,682.66 - Step 6: Final answer
x = 190,786.39
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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.