Finding the Fourth Proportional to 302,420.76, 417,334.52 and 189,305.88
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Solution
The fourth proportional to 302,420.76, 417,334.52 and 189,305.88 is: 261,238.28
Step by Step Solution
- Step 1: Write the proportion equation
302,420.76 : 417,334.52 = 189,305.88 : x - Step 2: Convert to fraction form
302,420.76/417,334.52 = 189,305.88/x - Step 3: Cross multiply
302,420.76x = 417,334.52 × 189,305.88 - Step 4: Simplify right side
302,420.76x = 79,003,878,562.98 - Step 5: Solve for x
x = 79,003,878,562.98/302,420.76 - Step 6: Final answer
x = 261,238.28
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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.