Finding the Fourth Proportional to 424,740.20, 637,221.40 and 158,503.08
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Solution
The fourth proportional to 424,740.20, 637,221.40 and 158,503.08 is: 237,796.08
Step by Step Solution
- Step 1: Write the proportion equation
424,740.20 : 637,221.40 = 158,503.08 : x - Step 2: Convert to fraction form
424,740.20/637,221.40 = 158,503.08/x - Step 3: Cross multiply
424,740.20x = 637,221.40 × 158,503.08 - Step 4: Simplify right side
424,740.20x = 101,001,554,541.91 - Step 5: Solve for x
x = 101,001,554,541.91/424,740.20 - Step 6: Final answer
x = 237,796.08
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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.