Finding the Fourth Proportional to 286,261.95, 429,460.37 and 86,583.99
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Solution
The fourth proportional to 286,261.95, 429,460.37 and 86,583.99 is: 129,896.38
Step by Step Solution
- Step 1: Write the proportion equation
286,261.95 : 429,460.37 = 86,583.99 : x - Step 2: Convert to fraction form
286,261.95/429,460.37 = 86,583.99/x - Step 3: Cross multiply
286,261.95x = 429,460.37 × 86,583.99 - Step 4: Simplify right side
286,261.95x = 37,184,391,948.56 - Step 5: Solve for x
x = 37,184,391,948.56/286,261.95 - Step 6: Final answer
x = 129,896.38
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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.