Finding the Fourth Proportional to 245,811.65, 339,252.44 and 138,402.68
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Solution
The fourth proportional to 245,811.65, 339,252.44 and 138,402.68 is: 191,013.91
Step by Step Solution
- Step 1: Write the proportion equation
245,811.65 : 339,252.44 = 138,402.68 : x - Step 2: Convert to fraction form
245,811.65/339,252.44 = 138,402.68/x - Step 3: Cross multiply
245,811.65x = 339,252.44 × 138,402.68 - Step 4: Simplify right side
245,811.65x = 46,953,444,504.26 - Step 5: Solve for x
x = 46,953,444,504.26/245,811.65 - Step 6: Final answer
x = 191,013.91
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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.