Finding the Fourth Proportional to 245,875.20, 339,325.92 and 138,456.96
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Solution
The fourth proportional to 245,875.20, 339,325.92 and 138,456.96 is: 191,080.82
Step by Step Solution
- Step 1: Write the proportion equation
245,875.20 : 339,325.92 = 138,456.96 : x - Step 2: Convert to fraction form
245,875.20/339,325.92 = 138,456.96/x - Step 3: Cross multiply
245,875.20x = 339,325.92 × 138,456.96 - Step 4: Simplify right side
245,875.20x = 46,982,035,332.40 - Step 5: Solve for x
x = 46,982,035,332.40/245,875.20 - Step 6: Final answer
x = 191,080.82
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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.