Finding the Fourth Proportional to 559,135.41, 838,703.11 and 138,411.28
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Solution
The fourth proportional to 559,135.41, 838,703.11 and 138,411.28 is: 207,616.92
Step by Step Solution
- Step 1: Write the proportion equation
559,135.41 : 838,703.11 = 138,411.28 : x - Step 2: Convert to fraction form
559,135.41/838,703.11 = 138,411.28/x - Step 3: Cross multiply
559,135.41x = 838,703.11 × 138,411.28 - Step 4: Simplify right side
559,135.41x = 116,085,971,956.95 - Step 5: Solve for x
x = 116,085,971,956.95/559,135.41 - Step 6: Final answer
x = 207,616.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.