Finding the Fourth Proportional to 257,566.02, 386,347.14 and 80,072.70
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Solution
The fourth proportional to 257,566.02, 386,347.14 and 80,072.70 is: 120,108.46
Step by Step Solution
- Step 1: Write the proportion equation
257,566.02 : 386,347.14 = 80,072.70 : x - Step 2: Convert to fraction form
257,566.02/386,347.14 = 80,072.70/x - Step 3: Cross multiply
257,566.02x = 386,347.14 × 80,072.70 - Step 4: Simplify right side
257,566.02x = 30,935,858,637.08 - Step 5: Solve for x
x = 30,935,858,637.08/257,566.02 - Step 6: Final answer
x = 120,108.46
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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.