Finding the Fourth Proportional to 287,248.68, 431,069.91 and 100,260.18
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Solution
The fourth proportional to 287,248.68, 431,069.91 and 100,260.18 is: 150,458.99
Step by Step Solution
- Step 1: Write the proportion equation
287,248.68 : 431,069.91 = 100,260.18 : x - Step 2: Convert to fraction form
287,248.68/431,069.91 = 100,260.18/x - Step 3: Cross multiply
287,248.68x = 431,069.91 × 100,260.18 - Step 4: Simplify right side
287,248.68x = 43,219,146,769.18 - Step 5: Solve for x
x = 43,219,146,769.18/287,248.68 - Step 6: Final answer
x = 150,458.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.