Finding the Fourth Proportional to 236,381.99, 326,206.67 and 128,951.98
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Solution
The fourth proportional to 236,381.99, 326,206.67 and 128,951.98 is: 177,953.47
Step by Step Solution
- Step 1: Write the proportion equation
236,381.99 : 326,206.67 = 128,951.98 : x - Step 2: Convert to fraction form
236,381.99/326,206.67 = 128,951.98/x - Step 3: Cross multiply
236,381.99x = 326,206.67 × 128,951.98 - Step 4: Simplify right side
236,381.99x = 42,064,994,525.43 - Step 5: Solve for x
x = 42,064,994,525.43/236,381.99 - Step 6: Final answer
x = 177,953.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.