Finding the Fourth Proportional to 316,196.68, 474,295.83 and 129,208.18
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Solution
The fourth proportional to 316,196.68, 474,295.83 and 129,208.18 is: 193,812.60
Step by Step Solution
- Step 1: Write the proportion equation
316,196.68 : 474,295.83 = 129,208.18 : x - Step 2: Convert to fraction form
316,196.68/474,295.83 = 129,208.18/x - Step 3: Cross multiply
316,196.68x = 474,295.83 × 129,208.18 - Step 4: Simplify right side
316,196.68x = 61,282,900,975.89 - Step 5: Solve for x
x = 61,282,900,975.89/316,196.68 - Step 6: Final answer
x = 193,812.60
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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.