Finding the Fourth Proportional to 309,545.88, 427,264.56 and 202,132.68
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Solution
The fourth proportional to 309,545.88, 427,264.56 and 202,132.68 is: 279,002.68
Step by Step Solution
- Step 1: Write the proportion equation
309,545.88 : 427,264.56 = 202,132.68 : x - Step 2: Convert to fraction form
309,545.88/427,264.56 = 202,132.68/x - Step 3: Cross multiply
309,545.88x = 427,264.56 × 202,132.68 - Step 4: Simplify right side
309,545.88x = 86,364,130,581.82 - Step 5: Solve for x
x = 86,364,130,581.82/309,545.88 - Step 6: Final answer
x = 279,002.68
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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.