Finding the Fourth Proportional to 405,966.10, 608,949.15 and 125,511.70
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Solution
The fourth proportional to 405,966.10, 608,949.15 and 125,511.70 is: 188,267.55
Step by Step Solution
- Step 1: Write the proportion equation
405,966.10 : 608,949.15 = 125,511.70 : x - Step 2: Convert to fraction form
405,966.10/608,949.15 = 125,511.70/x - Step 3: Cross multiply
405,966.10x = 608,949.15 × 125,511.70 - Step 4: Simplify right side
405,966.10x = 76,430,243,030.06 - Step 5: Solve for x
x = 76,430,243,030.06/405,966.10 - Step 6: Final answer
x = 188,267.55
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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.