Finding the Fourth Proportional to 236,584.80, 326,492.10 and 129,159.36
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Solution
The fourth proportional to 236,584.80, 326,492.10 and 129,159.36 is: 178,242.69
Step by Step Solution
- Step 1: Write the proportion equation
236,584.80 : 326,492.10 = 129,159.36 : x - Step 2: Convert to fraction form
236,584.80/326,492.10 = 129,159.36/x - Step 3: Cross multiply
236,584.80x = 326,492.10 × 129,159.36 - Step 4: Simplify right side
236,584.80x = 42,169,510,681.06 - Step 5: Solve for x
x = 42,169,510,681.06/236,584.80 - Step 6: Final answer
x = 178,242.69
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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.