Finding the Fourth Proportional to 378,557.28, 522,244.08 and 249,328.80
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Solution
The fourth proportional to 378,557.28, 522,244.08 and 249,328.80 is: 343,965.09
Step by Step Solution
- Step 1: Write the proportion equation
378,557.28 : 522,244.08 = 249,328.80 : x - Step 2: Convert to fraction form
378,557.28/522,244.08 = 249,328.80/x - Step 3: Cross multiply
378,557.28x = 522,244.08 × 249,328.80 - Step 4: Simplify right side
378,557.28x = 130,210,489,773.50 - Step 5: Solve for x
x = 130,210,489,773.50/378,557.28 - Step 6: Final answer
x = 343,965.09
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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.