Finding the Fourth Proportional to 390,453.66, 585,819.21 and 174,292.80
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Solution
The fourth proportional to 390,453.66, 585,819.21 and 174,292.80 is: 261,501.12
Step by Step Solution
- Step 1: Write the proportion equation
390,453.66 : 585,819.21 = 174,292.80 : x - Step 2: Convert to fraction form
390,453.66/585,819.21 = 174,292.80/x - Step 3: Cross multiply
390,453.66x = 585,819.21 × 174,292.80 - Step 4: Simplify right side
390,453.66x = 102,104,069,533.22 - Step 5: Solve for x
x = 102,104,069,533.22/390,453.66 - Step 6: Final answer
x = 261,501.12
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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.