Finding the Fourth Proportional to 319,206.42, 440,507.84 and 175,971.56
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Solution
The fourth proportional to 319,206.42, 440,507.84 and 175,971.56 is: 242,842.39
Step by Step Solution
- Step 1: Write the proportion equation
319,206.42 : 440,507.84 = 175,971.56 : x - Step 2: Convert to fraction form
319,206.42/440,507.84 = 175,971.56/x - Step 3: Cross multiply
319,206.42x = 440,507.84 × 175,971.56 - Step 4: Simplify right side
319,206.42x = 77,516,848,714.63 - Step 5: Solve for x
x = 77,516,848,714.63/319,206.42 - Step 6: Final answer
x = 242,842.39
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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.