Finding the Fourth Proportional to 614,435.75, 921,809.15 and 171,203.75
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Solution
The fourth proportional to 614,435.75, 921,809.15 and 171,203.75 is: 256,848.96
Step by Step Solution
- Step 1: Write the proportion equation
614,435.75 : 921,809.15 = 171,203.75 : x - Step 2: Convert to fraction form
614,435.75/921,809.15 = 171,203.75/x - Step 3: Cross multiply
614,435.75x = 921,809.15 × 171,203.75 - Step 4: Simplify right side
614,435.75x = 157,817,183,264.31 - Step 5: Solve for x
x = 157,817,183,264.31/614,435.75 - Step 6: Final answer
x = 256,848.96
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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.