Finding the Fourth Proportional to 351,705.18, 485,323.58 and 198,756.66
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Solution
The fourth proportional to 351,705.18, 485,323.58 and 198,756.66 is: 274,267.48
Step by Step Solution
- Step 1: Write the proportion equation
351,705.18 : 485,323.58 = 198,756.66 : x - Step 2: Convert to fraction form
351,705.18/485,323.58 = 198,756.66/x - Step 3: Cross multiply
351,705.18x = 485,323.58 × 198,756.66 - Step 4: Simplify right side
351,705.18x = 96,461,293,780.04 - Step 5: Solve for x
x = 96,461,293,780.04/351,705.18 - Step 6: Final answer
x = 274,267.48
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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.