Finding the Fourth Proportional to 318,237.21, 439,178.63 and 175,008.15
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Solution
The fourth proportional to 318,237.21, 439,178.63 and 175,008.15 is: 241,517.45
Step by Step Solution
- Step 1: Write the proportion equation
318,237.21 : 439,178.63 = 175,008.15 : x - Step 2: Convert to fraction form
318,237.21/439,178.63 = 175,008.15/x - Step 3: Cross multiply
318,237.21x = 439,178.63 × 175,008.15 - Step 4: Simplify right side
318,237.21x = 76,859,838,680.79 - Step 5: Solve for x
x = 76,859,838,680.79/318,237.21 - Step 6: Final answer
x = 241,517.45
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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.