Finding the Fourth Proportional to 205,282.19, 307,931.84 and 70,438.97
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Solution
The fourth proportional to 205,282.19, 307,931.84 and 70,438.97 is: 105,661.39
Step by Step Solution
- Step 1: Write the proportion equation
205,282.19 : 307,931.84 = 70,438.97 : x - Step 2: Convert to fraction form
205,282.19/307,931.84 = 70,438.97/x - Step 3: Cross multiply
205,282.19x = 307,931.84 × 70,438.97 - Step 4: Simplify right side
205,282.19x = 21,690,402,321.59 - Step 5: Solve for x
x = 21,690,402,321.59/205,282.19 - Step 6: Final answer
x = 105,661.39
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1.5x scale
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.