Finding the Fourth Proportional to 291,270.10, 436,905.15 and 249,279.70
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Solution
The fourth proportional to 291,270.10, 436,905.15 and 249,279.70 is: 373,919.55
Step by Step Solution
- Step 1: Write the proportion equation
291,270.10 : 436,905.15 = 249,279.70 : x - Step 2: Convert to fraction form
291,270.10/436,905.15 = 249,279.70/x - Step 3: Cross multiply
291,270.10x = 436,905.15 × 249,279.70 - Step 4: Simplify right side
291,270.10x = 108,911,584,720.46 - Step 5: Solve for x
x = 108,911,584,720.46/291,270.10 - Step 6: Final answer
x = 373,919.55
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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.