Finding the Fourth Proportional to 243,740.04, 336,378.42 and 136,320.09
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Solution
The fourth proportional to 243,740.04, 336,378.42 and 136,320.09 is: 188,131.32
Step by Step Solution
- Step 1: Write the proportion equation
243,740.04 : 336,378.42 = 136,320.09 : x - Step 2: Convert to fraction form
243,740.04/336,378.42 = 136,320.09/x - Step 3: Cross multiply
243,740.04x = 336,378.42 × 136,320.09 - Step 4: Simplify right side
243,740.04x = 45,855,136,488.46 - Step 5: Solve for x
x = 45,855,136,488.46/243,740.04 - Step 6: Final answer
x = 188,131.32
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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.