Finding the Fourth Proportional to 331,724.12, 457,779.32 and 180,821.12
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Solution
The fourth proportional to 331,724.12, 457,779.32 and 180,821.12 is: 249,533.16
Step by Step Solution
- Step 1: Write the proportion equation
331,724.12 : 457,779.32 = 180,821.12 : x - Step 2: Convert to fraction form
331,724.12/457,779.32 = 180,821.12/x - Step 3: Cross multiply
331,724.12x = 457,779.32 × 180,821.12 - Step 4: Simplify right side
331,724.12x = 82,776,169,355.24 - Step 5: Solve for x
x = 82,776,169,355.24/331,724.12 - Step 6: Final answer
x = 249,533.16
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.