Finding the Fourth Proportional to 316,059.12, 474,089.14 and 129,070.62
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Solution
The fourth proportional to 316,059.12, 474,089.14 and 129,070.62 is: 193,606.12
Step by Step Solution
- Step 1: Write the proportion equation
316,059.12 : 474,089.14 = 129,070.62 : x - Step 2: Convert to fraction form
316,059.12/474,089.14 = 129,070.62/x - Step 3: Cross multiply
316,059.12x = 474,089.14 × 129,070.62 - Step 4: Simplify right side
316,059.12x = 61,190,979,235.07 - Step 5: Solve for x
x = 61,190,979,235.07/316,059.12 - Step 6: Final answer
x = 193,606.12
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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.