Finding the Fourth Proportional to 312,489.68, 468,905.10 and 132,547.08
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Solution
The fourth proportional to 312,489.68, 468,905.10 and 132,547.08 is: 198,892.97
Step by Step Solution
- Step 1: Write the proportion equation
312,489.68 : 468,905.10 = 132,547.08 : x - Step 2: Convert to fraction form
312,489.68/468,905.10 = 132,547.08/x - Step 3: Cross multiply
312,489.68x = 468,905.10 × 132,547.08 - Step 4: Simplify right side
312,489.68x = 62,152,001,802.11 - Step 5: Solve for x
x = 62,152,001,802.11/312,489.68 - Step 6: Final answer
x = 198,892.97
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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.