Finding the Fourth Proportional to 390,202.37, 585,359.26 and 120,353.23
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Solution
The fourth proportional to 390,202.37, 585,359.26 and 120,353.23 is: 180,547.02
Step by Step Solution
- Step 1: Write the proportion equation
390,202.37 : 585,359.26 = 120,353.23 : x - Step 2: Convert to fraction form
390,202.37/585,359.26 = 120,353.23/x - Step 3: Cross multiply
390,202.37x = 585,359.26 × 120,353.23 - Step 4: Simplify right side
390,202.37x = 70,449,874,724.61 - Step 5: Solve for x
x = 70,449,874,724.61/390,202.37 - Step 6: Final answer
x = 180,547.02
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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.