Finding the Fourth Proportional to 257,327.70, 386,006.67 and 99,556.98
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Solution
The fourth proportional to 257,327.70, 386,006.67 and 99,556.98 is: 149,341.32
Step by Step Solution
- Step 1: Write the proportion equation
257,327.70 : 386,006.67 = 99,556.98 : x - Step 2: Convert to fraction form
257,327.70/386,006.67 = 99,556.98/x - Step 3: Cross multiply
257,327.70x = 386,006.67 × 99,556.98 - Step 4: Simplify right side
257,327.70x = 38,429,658,325.06 - Step 5: Solve for x
x = 38,429,658,325.06/257,327.70 - Step 6: Final answer
x = 149,341.32
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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.