Finding the Fourth Proportional to 313,219.61, 432,243.35 and 169,979.66
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Solution
The fourth proportional to 313,219.61, 432,243.35 and 169,979.66 is: 234,572.09
Step by Step Solution
- Step 1: Write the proportion equation
313,219.61 : 432,243.35 = 169,979.66 : x - Step 2: Convert to fraction form
313,219.61/432,243.35 = 169,979.66/x - Step 3: Cross multiply
313,219.61x = 432,243.35 × 169,979.66 - Step 4: Simplify right side
313,219.61x = 73,472,577,670.26 - Step 5: Solve for x
x = 73,472,577,670.26/313,219.61 - Step 6: Final answer
x = 234,572.09
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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.