Finding the Fourth Proportional to 338,967.27, 508,251.55 and 128,619.99
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Solution
The fourth proportional to 338,967.27, 508,251.55 and 128,619.99 is: 192,854.34
Step by Step Solution
- Step 1: Write the proportion equation
338,967.27 : 508,251.55 = 128,619.99 : x - Step 2: Convert to fraction form
338,967.27/508,251.55 = 128,619.99/x - Step 3: Cross multiply
338,967.27x = 508,251.55 × 128,619.99 - Step 4: Simplify right side
338,967.27x = 65,371,309,278.48 - Step 5: Solve for x
x = 65,371,309,278.48/338,967.27 - Step 6: Final answer
x = 192,854.34
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.