Finding the Fourth Proportional to 509,416.38, 763,435.26 and 193,701.06
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Solution
The fourth proportional to 509,416.38, 763,435.26 and 193,701.06 is: 290,289.49
Step by Step Solution
- Step 1: Write the proportion equation
509,416.38 : 763,435.26 = 193,701.06 : x - Step 2: Convert to fraction form
509,416.38/763,435.26 = 193,701.06/x - Step 3: Cross multiply
509,416.38x = 763,435.26 × 193,701.06 - Step 4: Simplify right side
509,416.38x = 147,878,219,103.38 - Step 5: Solve for x
x = 147,878,219,103.38/509,416.38 - Step 6: Final answer
x = 290,289.49
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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.