Finding the Fourth Proportional to 458,861.24, 688,291.86 and 143,343.02
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Solution
The fourth proportional to 458,861.24, 688,291.86 and 143,343.02 is: 215,014.53
Step by Step Solution
- Step 1: Write the proportion equation
458,861.24 : 688,291.86 = 143,343.02 : x - Step 2: Convert to fraction form
458,861.24/688,291.86 = 143,343.02/x - Step 3: Cross multiply
458,861.24x = 688,291.86 × 143,343.02 - Step 4: Simplify right side
458,861.24x = 98,661,833,853.82 - Step 5: Solve for x
x = 98,661,833,853.82/458,861.24 - Step 6: Final answer
x = 215,014.53
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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.