Finding the Fourth Proportional to 259,802.40, 389,703.60 and 159,637.80
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Solution
The fourth proportional to 259,802.40, 389,703.60 and 159,637.80 is: 239,456.70
Step by Step Solution
- Step 1: Write the proportion equation
259,802.40 : 389,703.60 = 159,637.80 : x - Step 2: Convert to fraction form
259,802.40/389,703.60 = 159,637.80/x - Step 3: Cross multiply
259,802.40x = 389,703.60 × 159,637.80 - Step 4: Simplify right side
259,802.40x = 62,211,425,356.08 - Step 5: Solve for x
x = 62,211,425,356.08/259,802.40 - Step 6: Final answer
x = 239,456.70
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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.