Finding the Fourth Proportional to 257,681.81, 386,651.63 and 115,628.66
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Solution
The fourth proportional to 257,681.81, 386,651.63 and 115,628.66 is: 173,500.84
Step by Step Solution
- Step 1: Write the proportion equation
257,681.81 : 386,651.63 = 115,628.66 : x - Step 2: Convert to fraction form
257,681.81/386,651.63 = 115,628.66/x - Step 3: Cross multiply
257,681.81x = 386,651.63 × 115,628.66 - Step 4: Simplify right side
257,681.81x = 44,708,011,193.98 - Step 5: Solve for x
x = 44,708,011,193.98/257,681.81 - Step 6: Final answer
x = 173,500.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.