Finding the Fourth Proportional to 389,075.52, 537,007.68 and 245,744.40
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Solution
The fourth proportional to 389,075.52, 537,007.68 and 245,744.40 is: 339,179.99
Step by Step Solution
- Step 1: Write the proportion equation
389,075.52 : 537,007.68 = 245,744.40 : x - Step 2: Convert to fraction form
389,075.52/537,007.68 = 245,744.40/x - Step 3: Cross multiply
389,075.52x = 537,007.68 × 245,744.40 - Step 4: Simplify right side
389,075.52x = 131,966,630,116.99 - Step 5: Solve for x
x = 131,966,630,116.99/389,075.52 - Step 6: Final answer
x = 339,179.99
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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.