Finding the Fourth Proportional to 292,511.80, 438,767.70 and 272,828.80
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Solution
The fourth proportional to 292,511.80, 438,767.70 and 272,828.80 is: 409,243.20
Step by Step Solution
- Step 1: Write the proportion equation
292,511.80 : 438,767.70 = 272,828.80 : x - Step 2: Convert to fraction form
292,511.80/438,767.70 = 272,828.80/x - Step 3: Cross multiply
292,511.80x = 438,767.70 × 272,828.80 - Step 4: Simplify right side
292,511.80x = 119,708,465,069.76 - Step 5: Solve for x
x = 119,708,465,069.76/292,511.80 - Step 6: Final answer
x = 409,243.20
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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.