Finding the Fourth Proportional to 455,243.07, 628,235.56 and 251,294.12
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Solution
The fourth proportional to 455,243.07, 628,235.56 and 251,294.12 is: 346,785.96
Step by Step Solution
- Step 1: Write the proportion equation
455,243.07 : 628,235.56 = 251,294.12 : x - Step 2: Convert to fraction form
455,243.07/628,235.56 = 251,294.12/x - Step 3: Cross multiply
455,243.07x = 628,235.56 × 251,294.12 - Step 4: Simplify right side
455,243.07x = 157,871,903,145.26 - Step 5: Solve for x
x = 157,871,903,145.26/455,243.07 - Step 6: Final answer
x = 346,785.96
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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.