Finding the Fourth Proportional to 402,343.14, 555,002.55 and 251,177.70
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Solution
The fourth proportional to 402,343.14, 555,002.55 and 251,177.70 is: 346,481.03
Step by Step Solution
- Step 1: Write the proportion equation
402,343.14 : 555,002.55 = 251,177.70 : x - Step 2: Convert to fraction form
402,343.14/555,002.55 = 251,177.70/x - Step 3: Cross multiply
402,343.14x = 555,002.55 × 251,177.70 - Step 4: Simplify right side
402,343.14x = 139,404,266,084.40 - Step 5: Solve for x
x = 139,404,266,084.40/402,343.14 - Step 6: Final answer
x = 346,481.03
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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.