Finding the Fourth Proportional to 229,312.08, 316,451.88 and 128,710.08
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Solution
The fourth proportional to 229,312.08, 316,451.88 and 128,710.08 is: 177,620.59
Step by Step Solution
- Step 1: Write the proportion equation
229,312.08 : 316,451.88 = 128,710.08 : x - Step 2: Convert to fraction form
229,312.08/316,451.88 = 128,710.08/x - Step 3: Cross multiply
229,312.08x = 316,451.88 × 128,710.08 - Step 4: Simplify right side
229,312.08x = 40,730,546,790.95 - Step 5: Solve for x
x = 40,730,546,790.95/229,312.08 - Step 6: Final answer
x = 177,620.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.