Finding the Fourth Proportional to 292,000.10, 438,000.15 and 255,841.70
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Solution
The fourth proportional to 292,000.10, 438,000.15 and 255,841.70 is: 383,762.55
Step by Step Solution
- Step 1: Write the proportion equation
292,000.10 : 438,000.15 = 255,841.70 : x - Step 2: Convert to fraction form
292,000.10/438,000.15 = 255,841.70/x - Step 3: Cross multiply
292,000.10x = 438,000.15 × 255,841.70 - Step 4: Simplify right side
292,000.10x = 112,058,702,976.26 - Step 5: Solve for x
x = 112,058,702,976.26/292,000.10 - Step 6: Final answer
x = 383,762.55
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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.