Finding the Fourth Proportional to 486,138.60, 729,207.90 and 249,505.20
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Solution
The fourth proportional to 486,138.60, 729,207.90 and 249,505.20 is: 374,257.80
Step by Step Solution
- Step 1: Write the proportion equation
486,138.60 : 729,207.90 = 249,505.20 : x - Step 2: Convert to fraction form
486,138.60/729,207.90 = 249,505.20/x - Step 3: Cross multiply
486,138.60x = 729,207.90 × 249,505.20 - Step 4: Simplify right side
486,138.60x = 181,941,162,931.08 - Step 5: Solve for x
x = 181,941,162,931.08/486,138.60 - Step 6: Final answer
x = 374,257.80
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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.