Finding the Fourth Proportional to 313,096.39, 432,379.92 and 216,547.63
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Solution
The fourth proportional to 313,096.39, 432,379.92 and 216,547.63 is: 299,047.99
Step by Step Solution
- Step 1: Write the proportion equation
313,096.39 : 432,379.92 = 216,547.63 : x - Step 2: Convert to fraction form
313,096.39/432,379.92 = 216,547.63/x - Step 3: Cross multiply
313,096.39x = 432,379.92 × 216,547.63 - Step 4: Simplify right side
313,096.39x = 93,630,846,666.69 - Step 5: Solve for x
x = 93,630,846,666.69/313,096.39 - Step 6: Final answer
x = 299,047.99
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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.