Finding the Fourth Proportional to 514,143.76, 771,534.96 and 247,931.68
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Solution
The fourth proportional to 514,143.76, 771,534.96 and 247,931.68 is: 372,051.50
Step by Step Solution
- Step 1: Write the proportion equation
514,143.76 : 771,534.96 = 247,931.68 : x - Step 2: Convert to fraction form
514,143.76/771,534.96 = 247,931.68/x - Step 3: Cross multiply
514,143.76x = 771,534.96 × 247,931.68 - Step 4: Simplify right side
514,143.76x = 191,287,958,811.53 - Step 5: Solve for x
x = 191,287,958,811.53/514,143.76 - Step 6: Final answer
x = 372,051.50
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1.5x scale
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.