Finding the Fourth Proportional to 456,427.73, 684,657.21 and 156,905.75
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Solution
The fourth proportional to 456,427.73, 684,657.21 and 156,905.75 is: 235,363.99
Step by Step Solution
- Step 1: Write the proportion equation
456,427.73 : 684,657.21 = 156,905.75 : x - Step 2: Convert to fraction form
456,427.73/684,657.21 = 156,905.75/x - Step 3: Cross multiply
456,427.73x = 684,657.21 × 156,905.75 - Step 4: Simplify right side
456,427.73x = 107,426,653,027.96 - Step 5: Solve for x
x = 107,426,653,027.96/456,427.73 - Step 6: Final answer
x = 235,363.99
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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.