Finding the Fourth Proportional to 306,312.29, 459,407.86 and 291,122.15
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Solution
The fourth proportional to 306,312.29, 459,407.86 and 291,122.15 is: 436,625.65
Step by Step Solution
- Step 1: Write the proportion equation
306,312.29 : 459,407.86 = 291,122.15 : x - Step 2: Convert to fraction form
306,312.29/459,407.86 = 291,122.15/x - Step 3: Cross multiply
306,312.29x = 459,407.86 × 291,122.15 - Step 4: Simplify right side
306,312.29x = 133,743,803,930.10 - Step 5: Solve for x
x = 133,743,803,930.10/306,312.29 - Step 6: Final answer
x = 436,625.65
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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.