Finding the Fourth Proportional to 221,125.95, 305,153.91 and 125,632.80
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Solution
The fourth proportional to 221,125.95, 305,153.91 and 125,632.80 is: 173,373.32
Step by Step Solution
- Step 1: Write the proportion equation
221,125.95 : 305,153.91 = 125,632.80 : x - Step 2: Convert to fraction form
221,125.95/305,153.91 = 125,632.80/x - Step 3: Cross multiply
221,125.95x = 305,153.91 × 125,632.80 - Step 4: Simplify right side
221,125.95x = 38,337,340,144.25 - Step 5: Solve for x
x = 38,337,340,144.25/221,125.95 - Step 6: Final answer
x = 173,373.32
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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.