Finding the Fourth Proportional to 316,314.90, 474,472.35 and 129,282.66
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Solution
The fourth proportional to 316,314.90, 474,472.35 and 129,282.66 is: 193,923.99
Step by Step Solution
- Step 1: Write the proportion equation
316,314.90 : 474,472.35 = 129,282.66 : x - Step 2: Convert to fraction form
316,314.90/474,472.35 = 129,282.66/x - Step 3: Cross multiply
316,314.90x = 474,472.35 × 129,282.66 - Step 4: Simplify right side
316,314.90x = 61,341,047,504.45 - Step 5: Solve for x
x = 61,341,047,504.45/316,314.90 - Step 6: Final answer
x = 193,923.99
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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.