Finding the Fourth Proportional to 239,015.05, 358,438.93 and 70,490.63
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Solution
The fourth proportional to 239,015.05, 358,438.93 and 70,490.63 is: 105,711.28
Step by Step Solution
- Step 1: Write the proportion equation
239,015.05 : 358,438.93 = 70,490.63 : x - Step 2: Convert to fraction form
239,015.05/358,438.93 = 70,490.63/x - Step 3: Cross multiply
239,015.05x = 358,438.93 × 70,490.63 - Step 4: Simplify right side
239,015.05x = 25,266,585,992.23 - Step 5: Solve for x
x = 25,266,585,992.23/239,015.05 - Step 6: Final answer
x = 105,711.28
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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.