Finding the Fourth Proportional to 291,706.80, 437,657.40 and 260,350.80
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Solution
The fourth proportional to 291,706.80, 437,657.40 and 260,350.80 is: 390,612.95
Step by Step Solution
- Step 1: Write the proportion equation
291,706.80 : 437,657.40 = 260,350.80 : x - Step 2: Convert to fraction form
291,706.80/437,657.40 = 260,350.80/x - Step 3: Cross multiply
291,706.80x = 437,657.40 × 260,350.80 - Step 4: Simplify right side
291,706.80x = 113,944,454,215.92 - Step 5: Solve for x
x = 113,944,454,215.92/291,706.80 - Step 6: Final answer
x = 390,612.95
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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.