Finding the Fourth Proportional to 311,875.32, 430,387.28 and 175,908.84
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Solution
The fourth proportional to 311,875.32, 430,387.28 and 175,908.84 is: 242,753.83
Step by Step Solution
- Step 1: Write the proportion equation
311,875.32 : 430,387.28 = 175,908.84 : x - Step 2: Convert to fraction form
311,875.32/430,387.28 = 175,908.84/x - Step 3: Cross multiply
311,875.32x = 430,387.28 × 175,908.84 - Step 4: Simplify right side
311,875.32x = 75,708,927,175.56 - Step 5: Solve for x
x = 75,708,927,175.56/311,875.32 - Step 6: Final answer
x = 242,753.83
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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.