Finding the Fourth Proportional to 398,991.08, 550,604.86 and 226,909.10
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Solution
The fourth proportional to 398,991.08, 550,604.86 and 226,909.10 is: 313,132.95
Step by Step Solution
- Step 1: Write the proportion equation
398,991.08 : 550,604.86 = 226,909.10 : x - Step 2: Convert to fraction form
398,991.08/550,604.86 = 226,909.10/x - Step 3: Cross multiply
398,991.08x = 550,604.86 × 226,909.10 - Step 4: Simplify right side
398,991.08x = 124,937,254,047.47 - Step 5: Solve for x
x = 124,937,254,047.47/398,991.08 - Step 6: Final answer
x = 313,132.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.