Finding the Fourth Proportional to 249,972.36, 345,122.82 and 223,068.62
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Solution
The fourth proportional to 249,972.36, 345,122.82 and 223,068.62 is: 307,978.33
Step by Step Solution
- Step 1: Write the proportion equation
249,972.36 : 345,122.82 = 223,068.62 : x - Step 2: Convert to fraction form
249,972.36/345,122.82 = 223,068.62/x - Step 3: Cross multiply
249,972.36x = 345,122.82 × 223,068.62 - Step 4: Simplify right side
249,972.36x = 76,986,069,462.29 - Step 5: Solve for x
x = 76,986,069,462.29/249,972.36 - Step 6: Final answer
x = 307,978.33
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1.5x scale
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.