Finding the Fourth Proportional to 369,995.60, 554,750.40 and 145,220.60
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Solution
The fourth proportional to 369,995.60, 554,750.40 and 145,220.60 is: 217,735.52
Step by Step Solution
- Step 1: Write the proportion equation
369,995.60 : 554,750.40 = 145,220.60 : x - Step 2: Convert to fraction form
369,995.60/554,750.40 = 145,220.60/x - Step 3: Cross multiply
369,995.60x = 554,750.40 × 145,220.60 - Step 4: Simplify right side
369,995.60x = 80,561,185,938.24 - Step 5: Solve for x
x = 80,561,185,938.24/369,995.60 - Step 6: Final answer
x = 217,735.52
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1.5x scale
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.