Finding the Fourth Proportional to 279,949.35, 386,335.91 and 157,444.08
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Solution
The fourth proportional to 279,949.35, 386,335.91 and 157,444.08 is: 217,276.09
Step by Step Solution
- Step 1: Write the proportion equation
279,949.35 : 386,335.91 = 157,444.08 : x - Step 2: Convert to fraction form
279,949.35/386,335.91 = 157,444.08/x - Step 3: Cross multiply
279,949.35x = 386,335.91 × 157,444.08 - Step 4: Simplify right side
279,949.35x = 60,826,301,133.69 - Step 5: Solve for x
x = 60,826,301,133.69/279,949.35 - Step 6: Final answer
x = 217,276.09
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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.