Finding the Fourth Proportional to 357,306.13, 535,959.20 and 107,988.13
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Solution
The fourth proportional to 357,306.13, 535,959.20 and 107,988.13 is: 161,982.20
Step by Step Solution
- Step 1: Write the proportion equation
357,306.13 : 535,959.20 = 107,988.13 : x - Step 2: Convert to fraction form
357,306.13/535,959.20 = 107,988.13/x - Step 3: Cross multiply
357,306.13x = 535,959.20 × 107,988.13 - Step 4: Simplify right side
357,306.13x = 57,877,231,764.30 - Step 5: Solve for x
x = 57,877,231,764.30/357,306.13 - Step 6: Final answer
x = 161,982.20
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1.5x scale
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.