Finding the Fourth Proportional to 361,472.40, 542,214.08 and 136,936.80
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Solution
The fourth proportional to 361,472.40, 542,214.08 and 136,936.80 is: 205,407.28
Step by Step Solution
- Step 1: Write the proportion equation
361,472.40 : 542,214.08 = 136,936.80 : x - Step 2: Convert to fraction form
361,472.40/542,214.08 = 136,936.80/x - Step 3: Cross multiply
361,472.40x = 542,214.08 × 136,936.80 - Step 4: Simplify right side
361,472.40x = 74,249,061,030.14 - Step 5: Solve for x
x = 74,249,061,030.14/361,472.40 - Step 6: Final answer
x = 205,407.28
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1.5x scale
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.