Finding the Fourth Proportional to 230,901.35, 318,696.99 and 135,438.80
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Solution
The fourth proportional to 230,901.35, 318,696.99 and 135,438.80 is: 186,936.71
Step by Step Solution
- Step 1: Write the proportion equation
230,901.35 : 318,696.99 = 135,438.80 : x - Step 2: Convert to fraction form
230,901.35/318,696.99 = 135,438.80/x - Step 3: Cross multiply
230,901.35x = 318,696.99 × 135,438.80 - Step 4: Simplify right side
230,901.35x = 43,163,937,961.42 - Step 5: Solve for x
x = 43,163,937,961.42/230,901.35 - Step 6: Final answer
x = 186,936.71
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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.