Finding the Fourth Proportional to 257,540.24, 386,358.80 and 103,677.98
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Solution
The fourth proportional to 257,540.24, 386,358.80 and 103,677.98 is: 155,536.47
Step by Step Solution
- Step 1: Write the proportion equation
257,540.24 : 386,358.80 = 103,677.98 : x - Step 2: Convert to fraction form
257,540.24/386,358.80 = 103,677.98/x - Step 3: Cross multiply
257,540.24x = 386,358.80 × 103,677.98 - Step 4: Simplify right side
257,540.24x = 40,056,899,939.22 - Step 5: Solve for x
x = 40,056,899,939.22/257,540.24 - Step 6: Final answer
x = 155,536.47
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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.