Finding the Fourth Proportional to 206,312.80, 309,435.98 and 56,518.06
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Solution
The fourth proportional to 206,312.80, 309,435.98 and 56,518.06 is: 84,767.99
Step by Step Solution
- Step 1: Write the proportion equation
206,312.80 : 309,435.98 = 56,518.06 : x - Step 2: Convert to fraction form
206,312.80/309,435.98 = 56,518.06/x - Step 3: Cross multiply
206,312.80x = 309,435.98 × 56,518.06 - Step 4: Simplify right side
206,312.80x = 17,488,721,283.80 - Step 5: Solve for x
x = 17,488,721,283.80/206,312.80 - Step 6: Final answer
x = 84,767.99
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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.