Finding the Fourth Proportional to 194,479.02, 291,718.80 and 128,215.08
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Solution
The fourth proportional to 194,479.02, 291,718.80 and 128,215.08 is: 192,322.80
Step by Step Solution
- Step 1: Write the proportion equation
194,479.02 : 291,718.80 = 128,215.08 : x - Step 2: Convert to fraction form
194,479.02/291,718.80 = 128,215.08/x - Step 3: Cross multiply
194,479.02x = 291,718.80 × 128,215.08 - Step 4: Simplify right side
194,479.02x = 37,402,749,279.50 - Step 5: Solve for x
x = 37,402,749,279.50/194,479.02 - Step 6: Final answer
x = 192,322.80
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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.