Finding the Fourth Proportional to 490,814.88, 736,238.74 and 135,799.18
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Solution
The fourth proportional to 490,814.88, 736,238.74 and 135,799.18 is: 203,703.31
Step by Step Solution
- Step 1: Write the proportion equation
490,814.88 : 736,238.74 = 135,799.18 : x - Step 2: Convert to fraction form
490,814.88/736,238.74 = 135,799.18/x - Step 3: Cross multiply
490,814.88x = 736,238.74 × 135,799.18 - Step 4: Simplify right side
490,814.88x = 99,980,617,176.23 - Step 5: Solve for x
x = 99,980,617,176.23/490,814.88 - Step 6: Final answer
x = 203,703.31
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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.