Finding the Fourth Proportional to 318,220.96, 439,133.12 and 174,972.48
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Solution
The fourth proportional to 318,220.96, 439,133.12 and 174,972.48 is: 241,455.53
Step by Step Solution
- Step 1: Write the proportion equation
318,220.96 : 439,133.12 = 174,972.48 : x - Step 2: Convert to fraction form
318,220.96/439,133.12 = 174,972.48/x - Step 3: Cross multiply
318,220.96x = 439,133.12 × 174,972.48 - Step 4: Simplify right side
318,220.96x = 76,836,211,056.54 - Step 5: Solve for x
x = 76,836,211,056.54/318,220.96 - Step 6: Final answer
x = 241,455.53
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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.