Finding the Fourth Proportional to 314,893.31, 472,252.15 and 87,134.07
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Solution
The fourth proportional to 314,893.31, 472,252.15 and 87,134.07 is: 130,676.80
Step by Step Solution
- Step 1: Write the proportion equation
314,893.31 : 472,252.15 = 87,134.07 : x - Step 2: Convert to fraction form
314,893.31/472,252.15 = 87,134.07/x - Step 3: Cross multiply
314,893.31x = 472,252.15 × 87,134.07 - Step 4: Simplify right side
314,893.31x = 41,149,251,460.08 - Step 5: Solve for x
x = 41,149,251,460.08/314,893.31 - Step 6: Final answer
x = 130,676.80
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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.