Finding the Fourth Proportional to 339,899.95, 509,898.44 and 126,649.68
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Solution
The fourth proportional to 339,899.95, 509,898.44 and 126,649.68 is: 189,992.59
Step by Step Solution
- Step 1: Write the proportion equation
339,899.95 : 509,898.44 = 126,649.68 : x - Step 2: Convert to fraction form
339,899.95/509,898.44 = 126,649.68/x - Step 3: Cross multiply
339,899.95x = 509,898.44 × 126,649.68 - Step 4: Simplify right side
339,899.95x = 64,578,472,663.00 - Step 5: Solve for x
x = 64,578,472,663.00/339,899.95 - Step 6: Final answer
x = 189,992.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.