Finding the Fourth Proportional to 156,311.31, 234,419.09 and 56,459.19
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Solution
The fourth proportional to 156,311.31, 234,419.09 and 56,459.19 is: 84,671.49
Step by Step Solution
- Step 1: Write the proportion equation
156,311.31 : 234,419.09 = 56,459.19 : x - Step 2: Convert to fraction form
156,311.31/234,419.09 = 56,459.19/x - Step 3: Cross multiply
156,311.31x = 234,419.09 × 56,459.19 - Step 4: Simplify right side
156,311.31x = 13,235,111,659.64 - Step 5: Solve for x
x = 13,235,111,659.64/156,311.31 - Step 6: Final answer
x = 84,671.49
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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.