Finding the Fourth Proportional to 243,493.68, 336,014.81 and 136,064.59
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Solution
The fourth proportional to 243,493.68, 336,014.81 and 136,064.59 is: 187,765.52
Step by Step Solution
- Step 1: Write the proportion equation
243,493.68 : 336,014.81 = 136,064.59 : x - Step 2: Convert to fraction form
243,493.68/336,014.81 = 136,064.59/x - Step 3: Cross multiply
243,493.68x = 336,014.81 × 136,064.59 - Step 4: Simplify right side
243,493.68x = 45,719,717,356.58 - Step 5: Solve for x
x = 45,719,717,356.58/243,493.68 - Step 6: Final answer
x = 187,765.52
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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.