Finding the Fourth Proportional to 163,605.70, 245,408.55 and 156,693.70
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Solution
The fourth proportional to 163,605.70, 245,408.55 and 156,693.70 is: 235,040.55
Step by Step Solution
- Step 1: Write the proportion equation
163,605.70 : 245,408.55 = 156,693.70 : x - Step 2: Convert to fraction form
163,605.70/245,408.55 = 156,693.70/x - Step 3: Cross multiply
163,605.70x = 245,408.55 × 156,693.70 - Step 4: Simplify right side
163,605.70x = 38,453,973,711.14 - Step 5: Solve for x
x = 38,453,973,711.14/163,605.70 - Step 6: Final answer
x = 235,040.55
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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.