Finding the Fourth Proportional to 390,265.23, 585,353.12 and 102,104.69
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Solution
The fourth proportional to 390,265.23, 585,353.12 and 102,104.69 is: 153,145.33
Step by Step Solution
- Step 1: Write the proportion equation
390,265.23 : 585,353.12 = 102,104.69 : x - Step 2: Convert to fraction form
390,265.23/585,353.12 = 102,104.69/x - Step 3: Cross multiply
390,265.23x = 585,353.12 × 102,104.69 - Step 4: Simplify right side
390,265.23x = 59,767,298,858.13 - Step 5: Solve for x
x = 59,767,298,858.13/390,265.23 - Step 6: Final answer
x = 153,145.33
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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.