Finding the Fourth Proportional to 286,787.80, 430,181.70 and 162,371.80
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Solution
The fourth proportional to 286,787.80, 430,181.70 and 162,371.80 is: 243,557.70
Step by Step Solution
- Step 1: Write the proportion equation
286,787.80 : 430,181.70 = 162,371.80 : x - Step 2: Convert to fraction form
286,787.80/430,181.70 = 162,371.80/x - Step 3: Cross multiply
286,787.80x = 430,181.70 × 162,371.80 - Step 4: Simplify right side
286,787.80x = 69,849,376,956.06 - Step 5: Solve for x
x = 69,849,376,956.06/286,787.80 - Step 6: Final answer
x = 243,557.70
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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.