Finding the Fourth Proportional to 307,641.24, 424,544.12 and 171,673.75
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Solution
The fourth proportional to 307,641.24, 424,544.12 and 171,673.75 is: 236,909.32
Step by Step Solution
- Step 1: Write the proportion equation
307,641.24 : 424,544.12 = 171,673.75 : x - Step 2: Convert to fraction form
307,641.24/424,544.12 = 171,673.75/x - Step 3: Cross multiply
307,641.24x = 424,544.12 × 171,673.75 - Step 4: Simplify right side
307,641.24x = 72,883,078,139.76 - Step 5: Solve for x
x = 72,883,078,139.76/307,641.24 - Step 6: Final answer
x = 236,909.32
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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.