Finding the Fourth Proportional to 291,259.80, 436,889.70 and 104,203.80
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Solution
The fourth proportional to 291,259.80, 436,889.70 and 104,203.80 is: 156,305.70
Step by Step Solution
- Step 1: Write the proportion equation
291,259.80 : 436,889.70 = 104,203.80 : x - Step 2: Convert to fraction form
291,259.80/436,889.70 = 104,203.80/x - Step 3: Cross multiply
291,259.80x = 436,889.70 × 104,203.80 - Step 4: Simplify right side
291,259.80x = 45,525,566,920.86 - Step 5: Solve for x
x = 45,525,566,920.86/291,259.80 - Step 6: Final answer
x = 156,305.70
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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.