Finding the Fourth Proportional to 266,631.16, 399,947.12 and 106,779.08
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Solution
The fourth proportional to 266,631.16, 399,947.12 and 106,779.08 is: 160,168.77
Step by Step Solution
- Step 1: Write the proportion equation
266,631.16 : 399,947.12 = 106,779.08 : x - Step 2: Convert to fraction form
266,631.16/399,947.12 = 106,779.08/x - Step 3: Cross multiply
266,631.16x = 399,947.12 × 106,779.08 - Step 4: Simplify right side
266,631.16x = 42,705,985,522.25 - Step 5: Solve for x
x = 42,705,985,522.25/266,631.16 - Step 6: Final answer
x = 160,168.77
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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.