Finding the Fourth Proportional to 339,979.68, 510,027.84 and 103,345.92
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Solution
The fourth proportional to 339,979.68, 510,027.84 and 103,345.92 is: 155,036.61
Step by Step Solution
- Step 1: Write the proportion equation
339,979.68 : 510,027.84 = 103,345.92 : x - Step 2: Convert to fraction form
339,979.68/510,027.84 = 103,345.92/x - Step 3: Cross multiply
339,979.68x = 510,027.84 × 103,345.92 - Step 4: Simplify right side
339,979.68x = 52,709,296,350.41 - Step 5: Solve for x
x = 52,709,296,350.41/339,979.68 - Step 6: Final answer
x = 155,036.61
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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.