Finding the Fourth Proportional to 311,726.04, 430,181.80 and 168,486.08
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Solution
The fourth proportional to 311,726.04, 430,181.80 and 168,486.08 is: 232,510.72
Step by Step Solution
- Step 1: Write the proportion equation
311,726.04 : 430,181.80 = 168,486.08 : x - Step 2: Convert to fraction form
311,726.04/430,181.80 = 168,486.08/x - Step 3: Cross multiply
311,726.04x = 430,181.80 × 168,486.08 - Step 4: Simplify right side
311,726.04x = 72,479,645,169.34 - Step 5: Solve for x
x = 72,479,645,169.34/311,726.04 - Step 6: Final answer
x = 232,510.72
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.