Finding the Fourth Proportional to 319,097.70, 478,646.55 and 201,291.30
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Solution
The fourth proportional to 319,097.70, 478,646.55 and 201,291.30 is: 301,936.95
Step by Step Solution
- Step 1: Write the proportion equation
319,097.70 : 478,646.55 = 201,291.30 : x - Step 2: Convert to fraction form
319,097.70/478,646.55 = 201,291.30/x - Step 3: Cross multiply
319,097.70x = 478,646.55 × 201,291.30 - Step 4: Simplify right side
319,097.70x = 96,347,386,290.02 - Step 5: Solve for x
x = 96,347,386,290.02/319,097.70 - Step 6: Final answer
x = 301,936.95
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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.