Finding the Fourth Proportional to 319,513.68, 479,369.96 and 94,875.28
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Solution
The fourth proportional to 319,513.68, 479,369.96 and 94,875.28 is: 142,342.45
Step by Step Solution
- Step 1: Write the proportion equation
319,513.68 : 479,369.96 = 94,875.28 : x - Step 2: Convert to fraction form
319,513.68/479,369.96 = 94,875.28/x - Step 3: Cross multiply
319,513.68x = 479,369.96 × 94,875.28 - Step 4: Simplify right side
319,513.68x = 45,480,359,178.59 - Step 5: Solve for x
x = 45,480,359,178.59/319,513.68 - Step 6: Final answer
x = 142,342.45
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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.