Finding the Fourth Proportional to 249,998.06, 375,036.05 and 81,479.29
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Solution
The fourth proportional to 249,998.06, 375,036.05 and 81,479.29 is: 122,231.63
Step by Step Solution
- Step 1: Write the proportion equation
249,998.06 : 375,036.05 = 81,479.29 : x - Step 2: Convert to fraction form
249,998.06/375,036.05 = 81,479.29/x - Step 3: Cross multiply
249,998.06x = 375,036.05 × 81,479.29 - Step 4: Simplify right side
249,998.06x = 30,557,670,589.38 - Step 5: Solve for x
x = 30,557,670,589.38/249,998.06 - Step 6: Final answer
x = 122,231.63
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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.