Finding the Fourth Proportional to 253,292,221.20, 379,938,331.80 and 239,183,446.80
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Solution
The fourth proportional to 253,292,221.20, 379,938,331.80 and 239,183,446.80 is: 358,775,170.20
Step by Step Solution
- Step 1: Write the proportion equation
253,292,221.20 : 379,938,331.80 = 239,183,446.80 : x - Step 2: Convert to fraction form
253,292,221.20/379,938,331.80 = 239,183,446.80/x - Step 3: Cross multiply
253,292,221.20x = 379,938,331.80 × 239,183,446.80 - Step 4: Simplify right side
253,292,221.20x = 90,874,959,771,366,048 - Step 5: Solve for x
x = 90,874,959,771,366,048/253,292,221.20 - Step 6: Final answer
x = 358,775,170.20
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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.