Finding the Fourth Proportional to 246,402.30, 340,035.09 and 138,972.09
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Solution
The fourth proportional to 246,402.30, 340,035.09 and 138,972.09 is: 191,781.44
Step by Step Solution
- Step 1: Write the proportion equation
246,402.30 : 340,035.09 = 138,972.09 : x - Step 2: Convert to fraction form
246,402.30/340,035.09 = 138,972.09/x - Step 3: Cross multiply
246,402.30x = 340,035.09 × 138,972.09 - Step 4: Simplify right side
246,402.30x = 47,255,387,130.64 - Step 5: Solve for x
x = 47,255,387,130.64/246,402.30 - Step 6: Final answer
x = 191,781.44
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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.