Finding the Fourth Proportional to 353,243.70, 529,865.55 and 290,661.08
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Solution
The fourth proportional to 353,243.70, 529,865.55 and 290,661.08 is: 435,991.61
Step by Step Solution
- Step 1: Write the proportion equation
353,243.70 : 529,865.55 = 290,661.08 : x - Step 2: Convert to fraction form
353,243.70/529,865.55 = 290,661.08/x - Step 3: Cross multiply
353,243.70x = 529,865.55 × 290,661.08 - Step 4: Simplify right side
353,243.70x = 154,011,290,368.47 - Step 5: Solve for x
x = 154,011,290,368.47/353,243.70 - Step 6: Final answer
x = 435,991.61
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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.