Finding the Fourth Proportional to 156,879.18, 235,316.70 and 38,551.55
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Solution
The fourth proportional to 156,879.18, 235,316.70 and 38,551.55 is: 57,826.81
Step by Step Solution
- Step 1: Write the proportion equation
156,879.18 : 235,316.70 = 38,551.55 : x - Step 2: Convert to fraction form
156,879.18/235,316.70 = 38,551.55/x - Step 3: Cross multiply
156,879.18x = 235,316.70 × 38,551.55 - Step 4: Simplify right side
156,879.18x = 9,071,822,349.30 - Step 5: Solve for x
x = 9,071,822,349.30/156,879.18 - Step 6: Final answer
x = 57,826.81
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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.