Finding the Fourth Proportional to 316,185.18, 474,278.58 and 129,196.68
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Solution
The fourth proportional to 316,185.18, 474,278.58 and 129,196.68 is: 193,795.35
Step by Step Solution
- Step 1: Write the proportion equation
316,185.18 : 474,278.58 = 129,196.68 : x - Step 2: Convert to fraction form
316,185.18/474,278.58 = 129,196.68/x - Step 3: Cross multiply
316,185.18x = 474,278.58 × 129,196.68 - Step 4: Simplify right side
316,185.18x = 61,275,217,931.11 - Step 5: Solve for x
x = 61,275,217,931.11/316,185.18 - Step 6: Final answer
x = 193,795.35
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1.5x scale
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.