Finding the Fourth Proportional to 207,246.30, 310,869.45 and 157,479.90
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Solution
The fourth proportional to 207,246.30, 310,869.45 and 157,479.90 is: 236,219.85
Step by Step Solution
- Step 1: Write the proportion equation
207,246.30 : 310,869.45 = 157,479.90 : x - Step 2: Convert to fraction form
207,246.30/310,869.45 = 157,479.90/x - Step 3: Cross multiply
207,246.30x = 310,869.45 × 157,479.90 - Step 4: Simplify right side
207,246.30x = 48,955,689,899.06 - Step 5: Solve for x
x = 48,955,689,899.06/207,246.30 - Step 6: Final answer
x = 236,219.85
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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.