Finding the Fourth Proportional to 458,105.50, 687,201.99 and 142,477.66
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Solution
The fourth proportional to 458,105.50, 687,201.99 and 142,477.66 is: 213,730.09
Step by Step Solution
- Step 1: Write the proportion equation
458,105.50 : 687,201.99 = 142,477.66 : x - Step 2: Convert to fraction form
458,105.50/687,201.99 = 142,477.66/x - Step 3: Cross multiply
458,105.50x = 687,201.99 × 142,477.66 - Step 4: Simplify right side
458,105.50x = 97,910,931,482.54 - Step 5: Solve for x
x = 97,910,931,482.54/458,105.50 - Step 6: Final answer
x = 213,730.09
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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.