Finding the Fourth Proportional to 316,719.21, 437,079.62 and 180,750.45
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Solution
The fourth proportional to 316,719.21, 437,079.62 and 180,750.45 is: 249,439.68
Step by Step Solution
- Step 1: Write the proportion equation
316,719.21 : 437,079.62 = 180,750.45 : x - Step 2: Convert to fraction form
316,719.21/437,079.62 = 180,750.45/x - Step 3: Cross multiply
316,719.21x = 437,079.62 × 180,750.45 - Step 4: Simplify right side
316,719.21x = 79,002,338,000.83 - Step 5: Solve for x
x = 79,002,338,000.83/316,719.21 - Step 6: Final answer
x = 249,439.68
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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.