Finding the Fourth Proportional to 356,420.70, 534,775.05 and 156,779.10
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Solution
The fourth proportional to 356,420.70, 534,775.05 and 156,779.10 is: 235,231.99
Step by Step Solution
- Step 1: Write the proportion equation
356,420.70 : 534,775.05 = 156,779.10 : x - Step 2: Convert to fraction form
356,420.70/534,775.05 = 156,779.10/x - Step 3: Cross multiply
356,420.70x = 534,775.05 × 156,779.10 - Step 4: Simplify right side
356,420.70x = 83,841,551,041.46 - Step 5: Solve for x
x = 83,841,551,041.46/356,420.70 - Step 6: Final answer
x = 235,231.99
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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.