Finding the Fourth Proportional to 257,398.08, 386,229.24 and 122,614.80
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Solution
The fourth proportional to 257,398.08, 386,229.24 and 122,614.80 is: 183,985.14
Step by Step Solution
- Step 1: Write the proportion equation
257,398.08 : 386,229.24 = 122,614.80 : x - Step 2: Convert to fraction form
257,398.08/386,229.24 = 122,614.80/x - Step 3: Cross multiply
257,398.08x = 386,229.24 × 122,614.80 - Step 4: Simplify right side
257,398.08x = 47,357,421,016.75 - Step 5: Solve for x
x = 47,357,421,016.75/257,398.08 - Step 6: Final answer
x = 183,985.14
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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.