Finding the Fourth Proportional to 411,405.62, 567,860.45 and 239,364.05
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Solution
The fourth proportional to 411,405.62, 567,860.45 and 239,364.05 is: 330,392.61
Step by Step Solution
- Step 1: Write the proportion equation
411,405.62 : 567,860.45 = 239,364.05 : x - Step 2: Convert to fraction form
411,405.62/567,860.45 = 239,364.05/x - Step 3: Cross multiply
411,405.62x = 567,860.45 × 239,364.05 - Step 4: Simplify right side
411,405.62x = 135,925,373,110.70 - Step 5: Solve for x
x = 135,925,373,110.70/411,405.62 - Step 6: Final answer
x = 330,392.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.