Finding the Fourth Proportional to 305,207.40, 457,811.10 and 260,106.60
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Solution
The fourth proportional to 305,207.40, 457,811.10 and 260,106.60 is: 390,159.90
Step by Step Solution
- Step 1: Write the proportion equation
305,207.40 : 457,811.10 = 260,106.60 : x - Step 2: Convert to fraction form
305,207.40/457,811.10 = 260,106.60/x - Step 3: Cross multiply
305,207.40x = 457,811.10 × 260,106.60 - Step 4: Simplify right side
305,207.40x = 119,079,688,663.26 - Step 5: Solve for x
x = 119,079,688,663.26/305,207.40 - Step 6: Final answer
x = 390,159.90
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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.