Finding the Fourth Proportional to 234,217.76, 351,111.36 and 84,421.40
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Solution
The fourth proportional to 234,217.76, 351,111.36 and 84,421.40 is: 126,554.50
Step by Step Solution
- Step 1: Write the proportion equation
234,217.76 : 351,111.36 = 84,421.40 : x - Step 2: Convert to fraction form
234,217.76/351,111.36 = 84,421.40/x - Step 3: Cross multiply
234,217.76x = 351,111.36 × 84,421.40 - Step 4: Simplify right side
234,217.76x = 29,641,312,567.10 - Step 5: Solve for x
x = 29,641,312,567.10/234,217.76 - Step 6: Final answer
x = 126,554.50
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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.