Finding the Fourth Proportional to 306,705.18, 423,269.40 and 170,750.99
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Solution
The fourth proportional to 306,705.18, 423,269.40 and 170,750.99 is: 235,645.41
Step by Step Solution
- Step 1: Write the proportion equation
306,705.18 : 423,269.40 = 170,750.99 : x - Step 2: Convert to fraction form
306,705.18/423,269.40 = 170,750.99/x - Step 3: Cross multiply
306,705.18x = 423,269.40 × 170,750.99 - Step 4: Simplify right side
306,705.18x = 72,273,667,443.83 - Step 5: Solve for x
x = 72,273,667,443.83/306,705.18 - Step 6: Final answer
x = 235,645.41
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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.