Finding the Fourth Proportional to 292,213.20, 438,319.80 and 243,005.70
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Solution
The fourth proportional to 292,213.20, 438,319.80 and 243,005.70 is: 364,508.55
Step by Step Solution
- Step 1: Write the proportion equation
292,213.20 : 438,319.80 = 243,005.70 : x - Step 2: Convert to fraction form
292,213.20/438,319.80 = 243,005.70/x - Step 3: Cross multiply
292,213.20x = 438,319.80 × 243,005.70 - Step 4: Simplify right side
292,213.20x = 106,514,209,822.86 - Step 5: Solve for x
x = 106,514,209,822.86/292,213.20 - Step 6: Final answer
x = 364,508.55
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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.