Finding the Fourth Proportional to 519,745.12, 717,248.28 and 281,281.12
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Solution
The fourth proportional to 519,745.12, 717,248.28 and 281,281.12 is: 388,167.95
Step by Step Solution
- Step 1: Write the proportion equation
519,745.12 : 717,248.28 = 281,281.12 : x - Step 2: Convert to fraction form
519,745.12/717,248.28 = 281,281.12/x - Step 3: Cross multiply
519,745.12x = 717,248.28 × 281,281.12 - Step 4: Simplify right side
519,745.12x = 201,748,399,516.47 - Step 5: Solve for x
x = 201,748,399,516.47/519,745.12 - Step 6: Final answer
x = 388,167.95
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1.5x scale
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.