Finding the Fourth Proportional to 290,547.81, 435,804.80 and 130,582.53
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Solution
The fourth proportional to 290,547.81, 435,804.80 and 130,582.53 is: 195,866.19
Step by Step Solution
- Step 1: Write the proportion equation
290,547.81 : 435,804.80 = 130,582.53 : x - Step 2: Convert to fraction form
290,547.81/435,804.80 = 130,582.53/x - Step 3: Cross multiply
290,547.81x = 435,804.80 × 130,582.53 - Step 4: Simplify right side
290,547.81x = 56,908,492,717.23 - Step 5: Solve for x
x = 56,908,492,717.23/290,547.81 - Step 6: Final answer
x = 195,866.19
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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.