Finding the Fourth Proportional to 342,605.85, 513,957.99 and 105,966.98
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Solution
The fourth proportional to 342,605.85, 513,957.99 and 105,966.98 is: 158,965.70
Step by Step Solution
- Step 1: Write the proportion equation
342,605.85 : 513,957.99 = 105,966.98 : x - Step 2: Convert to fraction form
342,605.85/513,957.99 = 105,966.98/x - Step 3: Cross multiply
342,605.85x = 513,957.99 × 105,966.98 - Step 4: Simplify right side
342,605.85x = 54,462,577,799.02 - Step 5: Solve for x
x = 54,462,577,799.02/342,605.85 - Step 6: Final answer
x = 158,965.70
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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.