Finding the Fourth Proportional to 402,691.23, 603,661.14 and 136,266.39
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Solution
The fourth proportional to 402,691.23, 603,661.14 and 136,266.39 is: 204,272.45
Step by Step Solution
- Step 1: Write the proportion equation
402,691.23 : 603,661.14 = 136,266.39 : x - Step 2: Convert to fraction form
402,691.23/603,661.14 = 136,266.39/x - Step 3: Cross multiply
402,691.23x = 603,661.14 × 136,266.39 - Step 4: Simplify right side
402,691.23x = 82,258,724,331.08 - Step 5: Solve for x
x = 82,258,724,331.08/402,691.23 - Step 6: Final answer
x = 204,272.45
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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.