Finding the Fourth Proportional to 251,108.14, 346,531.68 and 137,930.90
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Solution
The fourth proportional to 251,108.14, 346,531.68 and 137,930.90 is: 190,345.99
Step by Step Solution
- Step 1: Write the proportion equation
251,108.14 : 346,531.68 = 137,930.90 : x - Step 2: Convert to fraction form
251,108.14/346,531.68 = 137,930.90/x - Step 3: Cross multiply
251,108.14x = 346,531.68 × 137,930.90 - Step 4: Simplify right side
251,108.14x = 47,797,426,500.91 - Step 5: Solve for x
x = 47,797,426,500.91/251,108.14 - Step 6: Final answer
x = 190,345.99
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1.5x scale
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.