Finding the Fourth Proportional to 458,860.24, 688,290.36 and 143,342.02
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Solution
The fourth proportional to 458,860.24, 688,290.36 and 143,342.02 is: 215,013.03
Step by Step Solution
- Step 1: Write the proportion equation
458,860.24 : 688,290.36 = 143,342.02 : x - Step 2: Convert to fraction form
458,860.24/688,290.36 = 143,342.02/x - Step 3: Cross multiply
458,860.24x = 688,290.36 × 143,342.02 - Step 4: Simplify right side
458,860.24x = 98,660,930,548.93 - Step 5: Solve for x
x = 98,660,930,548.93/458,860.24 - Step 6: Final answer
x = 215,013.03
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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.