Finding the Fourth Proportional to 266,219.80, 399,439.05 and 97,820.80
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Solution
The fourth proportional to 266,219.80, 399,439.05 and 97,820.80 is: 146,771.38
Step by Step Solution
- Step 1: Write the proportion equation
266,219.80 : 399,439.05 = 97,820.80 : x - Step 2: Convert to fraction form
266,219.80/399,439.05 = 97,820.80/x - Step 3: Cross multiply
266,219.80x = 399,439.05 × 97,820.80 - Step 4: Simplify right side
266,219.80x = 39,073,447,422.24 - Step 5: Solve for x
x = 39,073,447,422.24/266,219.80 - Step 6: Final answer
x = 146,771.38
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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.