Finding the Fourth Proportional to 272,488.70, 408,733.05 and 239,246.30
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Solution
The fourth proportional to 272,488.70, 408,733.05 and 239,246.30 is: 358,869.45
Step by Step Solution
- Step 1: Write the proportion equation
272,488.70 : 408,733.05 = 239,246.30 : x - Step 2: Convert to fraction form
272,488.70/408,733.05 = 239,246.30/x - Step 3: Cross multiply
272,488.70x = 408,733.05 × 239,246.30 - Step 4: Simplify right side
272,488.70x = 97,787,869,900.22 - Step 5: Solve for x
x = 97,787,869,900.22/272,488.70 - Step 6: Final answer
x = 358,869.45
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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.