Finding the Fourth Proportional to 205,430.10, 307,540.35 and 153,071.70
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Solution
The fourth proportional to 205,430.10, 307,540.35 and 153,071.70 is: 229,156.90
Step by Step Solution
- Step 1: Write the proportion equation
205,430.10 : 307,540.35 = 153,071.70 : x - Step 2: Convert to fraction form
205,430.10/307,540.35 = 153,071.70/x - Step 3: Cross multiply
205,430.10x = 307,540.35 × 153,071.70 - Step 4: Simplify right side
205,430.10x = 47,075,724,193.10 - Step 5: Solve for x
x = 47,075,724,193.10/205,430.10 - Step 6: Final answer
x = 229,156.90
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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.