Finding the Fourth Proportional to 458,203.75, 687,397.80 and 158,677.70
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Solution
The fourth proportional to 458,203.75, 687,397.80 and 158,677.70 is: 238,048.47
Step by Step Solution
- Step 1: Write the proportion equation
458,203.75 : 687,397.80 = 158,677.70 : x - Step 2: Convert to fraction form
458,203.75/687,397.80 = 158,677.70/x - Step 3: Cross multiply
458,203.75x = 687,397.80 × 158,677.70 - Step 4: Simplify right side
458,203.75x = 109,074,701,889.06 - Step 5: Solve for x
x = 109,074,701,889.06/458,203.75 - Step 6: Final answer
x = 238,048.47
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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.