Finding the Fourth Proportional to 286,916.04, 430,389.36 and 87,221.07
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Solution
The fourth proportional to 286,916.04, 430,389.36 and 87,221.07 is: 130,836.26
Step by Step Solution
- Step 1: Write the proportion equation
286,916.04 : 430,389.36 = 87,221.07 : x - Step 2: Convert to fraction form
286,916.04/430,389.36 = 87,221.07/x - Step 3: Cross multiply
286,916.04x = 430,389.36 × 87,221.07 - Step 4: Simplify right side
286,916.04x = 37,539,020,495.82 - Step 5: Solve for x
x = 37,539,020,495.82/286,916.04 - Step 6: Final answer
x = 130,836.26
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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.