Finding the Fourth Proportional to 310,719.69, 428,852.06 and 194,487.06
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Solution
The fourth proportional to 310,719.69, 428,852.06 and 194,487.06 is: 268,429.00
Step by Step Solution
- Step 1: Write the proportion equation
310,719.69 : 428,852.06 = 194,487.06 : x - Step 2: Convert to fraction form
310,719.69/428,852.06 = 194,487.06/x - Step 3: Cross multiply
310,719.69x = 428,852.06 × 194,487.06 - Step 4: Simplify right side
310,719.69x = 83,406,175,351.91 - Step 5: Solve for x
x = 83,406,175,351.91/310,719.69 - Step 6: Final answer
x = 268,429.00
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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.