Finding the Fourth Proportional to 339,267.80, 508,901.70 and 286,779.80
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Solution
The fourth proportional to 339,267.80, 508,901.70 and 286,779.80 is: 430,169.70
Step by Step Solution
- Step 1: Write the proportion equation
339,267.80 : 508,901.70 = 286,779.80 : x - Step 2: Convert to fraction form
339,267.80/508,901.70 = 286,779.80/x - Step 3: Cross multiply
339,267.80x = 508,901.70 × 286,779.80 - Step 4: Simplify right side
339,267.80x = 145,942,727,745.66 - Step 5: Solve for x
x = 145,942,727,745.66/339,267.80 - Step 6: Final answer
x = 430,169.70
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1.5x scale
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.