Finding the Fourth Proportional to 286,605.18, 429,908.81 and 86,927.31
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Solution
The fourth proportional to 286,605.18, 429,908.81 and 86,927.31 is: 130,391.28
Step by Step Solution
- Step 1: Write the proportion equation
286,605.18 : 429,908.81 = 86,927.31 : x - Step 2: Convert to fraction form
286,605.18/429,908.81 = 86,927.31/x - Step 3: Cross multiply
286,605.18x = 429,908.81 × 86,927.31 - Step 4: Simplify right side
286,605.18x = 37,370,815,963.96 - Step 5: Solve for x
x = 37,370,815,963.96/286,605.18 - Step 6: Final answer
x = 130,391.28
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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.