Finding the Fourth Proportional to 229,529.04, 316,779.76 and 128,927.04
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Solution
The fourth proportional to 229,529.04, 316,779.76 and 128,927.04 is: 177,935.99
Step by Step Solution
- Step 1: Write the proportion equation
229,529.04 : 316,779.76 = 128,927.04 : x - Step 2: Convert to fraction form
229,529.04/316,779.76 = 128,927.04/x - Step 3: Cross multiply
229,529.04x = 316,779.76 × 128,927.04 - Step 4: Simplify right side
229,529.04x = 40,841,476,788.71 - Step 5: Solve for x
x = 40,841,476,788.71/229,529.04 - Step 6: Final answer
x = 177,935.99
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1.5x scale
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.