Finding the Fourth Proportional to 290,743.80, 436,115.70 and 249,271.80
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Solution
The fourth proportional to 290,743.80, 436,115.70 and 249,271.80 is: 373,907.70
Step by Step Solution
- Step 1: Write the proportion equation
290,743.80 : 436,115.70 = 249,271.80 : x - Step 2: Convert to fraction form
290,743.80/436,115.70 = 249,271.80/x - Step 3: Cross multiply
290,743.80x = 436,115.70 × 249,271.80 - Step 4: Simplify right side
290,743.80x = 108,711,345,547.26 - Step 5: Solve for x
x = 108,711,345,547.26/290,743.80 - Step 6: Final answer
x = 373,907.70
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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.