Finding the Fourth Proportional to 316,195.18, 474,293.58 and 129,206.68
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Solution
The fourth proportional to 316,195.18, 474,293.58 and 129,206.68 is: 193,810.35
Step by Step Solution
- Step 1: Write the proportion equation
316,195.18 : 474,293.58 = 129,206.68 : x - Step 2: Convert to fraction form
316,195.18/474,293.58 = 129,206.68/x - Step 3: Cross multiply
316,195.18x = 474,293.58 × 129,206.68 - Step 4: Simplify right side
316,195.18x = 61,281,898,817.11 - Step 5: Solve for x
x = 61,281,898,817.11/316,195.18 - Step 6: Final answer
x = 193,810.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.