Finding the Fourth Proportional to 217,155.79, 325,846.19 and 145,159.08
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Solution
The fourth proportional to 217,155.79, 325,846.19 and 145,159.08 is: 217,813.82
Step by Step Solution
- Step 1: Write the proportion equation
217,155.79 : 325,846.19 = 145,159.08 : x - Step 2: Convert to fraction form
217,155.79/325,846.19 = 145,159.08/x - Step 3: Cross multiply
217,155.79x = 325,846.19 × 145,159.08 - Step 4: Simplify right side
217,155.79x = 47,299,533,161.91 - Step 5: Solve for x
x = 47,299,533,161.91/217,155.79 - Step 6: Final answer
x = 217,813.82
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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.