Finding the Fourth Proportional to 257,203.23, 385,663.91 and 79,660.95
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Solution
The fourth proportional to 257,203.23, 385,663.91 and 79,660.95 is: 119,447.77
Step by Step Solution
- Step 1: Write the proportion equation
257,203.23 : 385,663.91 = 79,660.95 : x - Step 2: Convert to fraction form
257,203.23/385,663.91 = 79,660.95/x - Step 3: Cross multiply
257,203.23x = 385,663.91 × 79,660.95 - Step 4: Simplify right side
257,203.23x = 30,722,353,053.01 - Step 5: Solve for x
x = 30,722,353,053.01/257,203.23 - Step 6: Final answer
x = 119,447.77
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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.