Finding the Fourth Proportional to 250,349.99, 345,483.20 and 137,172.74
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Solution
The fourth proportional to 250,349.99, 345,483.20 and 137,172.74 is: 189,298.50
Step by Step Solution
- Step 1: Write the proportion equation
250,349.99 : 345,483.20 = 137,172.74 : x - Step 2: Convert to fraction form
250,349.99/345,483.20 = 137,172.74/x - Step 3: Cross multiply
250,349.99x = 345,483.20 × 137,172.74 - Step 4: Simplify right side
250,349.99x = 47,390,876,482.10 - Step 5: Solve for x
x = 47,390,876,482.10/250,349.99 - Step 6: Final answer
x = 189,298.50
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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.