Finding the Fourth Proportional to 473,729.67, 653,739.21 and 258,865.20
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Solution
The fourth proportional to 473,729.67, 653,739.21 and 258,865.20 is: 357,229.75
Step by Step Solution
- Step 1: Write the proportion equation
473,729.67 : 653,739.21 = 258,865.20 : x - Step 2: Convert to fraction form
473,729.67/653,739.21 = 258,865.20/x - Step 3: Cross multiply
473,729.67x = 653,739.21 × 258,865.20 - Step 4: Simplify right side
473,729.67x = 169,230,331,344.49 - Step 5: Solve for x
x = 169,230,331,344.49/473,729.67 - Step 6: Final answer
x = 357,229.75
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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.