Finding the Fourth Proportional to 539,129.80, 808,694.70 and 206,705.80
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Solution
The fourth proportional to 539,129.80, 808,694.70 and 206,705.80 is: 310,058.70
Step by Step Solution
- Step 1: Write the proportion equation
539,129.80 : 808,694.70 = 206,705.80 : x - Step 2: Convert to fraction form
539,129.80/808,694.70 = 206,705.80/x - Step 3: Cross multiply
539,129.80x = 808,694.70 × 206,705.80 - Step 4: Simplify right side
539,129.80x = 167,161,884,919.26 - Step 5: Solve for x
x = 167,161,884,919.26/539,129.80 - Step 6: Final answer
x = 310,058.70
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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.