Finding the Fourth Proportional to 318,927.12, 440,119.44 and 175,687.08
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Solution
The fourth proportional to 318,927.12, 440,119.44 and 175,687.08 is: 242,448.18
Step by Step Solution
- Step 1: Write the proportion equation
318,927.12 : 440,119.44 = 175,687.08 : x - Step 2: Convert to fraction form
318,927.12/440,119.44 = 175,687.08/x - Step 3: Cross multiply
318,927.12x = 440,119.44 × 175,687.08 - Step 4: Simplify right side
318,927.12x = 77,323,299,264.84 - Step 5: Solve for x
x = 77,323,299,264.84/318,927.12 - Step 6: Final answer
x = 242,448.18
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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.