Finding the Fourth Proportional to 221,032.02, 305,024.22 and 120,430.02
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Solution
The fourth proportional to 221,032.02, 305,024.22 and 120,430.02 is: 166,193.45
Step by Step Solution
- Step 1: Write the proportion equation
221,032.02 : 305,024.22 = 120,430.02 : x - Step 2: Convert to fraction form
221,032.02/305,024.22 = 120,430.02/x - Step 3: Cross multiply
221,032.02x = 305,024.22 × 120,430.02 - Step 4: Simplify right side
221,032.02x = 36,734,072,915.08 - Step 5: Solve for x
x = 36,734,072,915.08/221,032.02 - Step 6: Final answer
x = 166,193.45
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1.5x scale
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.