Finding the Fourth Proportional to 339,291.74, 508,955.12 and 86,574.44
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Solution
The fourth proportional to 339,291.74, 508,955.12 and 86,574.44 is: 129,866.12
Step by Step Solution
- Step 1: Write the proportion equation
339,291.74 : 508,955.12 = 86,574.44 : x - Step 2: Convert to fraction form
339,291.74/508,955.12 = 86,574.44/x - Step 3: Cross multiply
339,291.74x = 508,955.12 × 86,574.44 - Step 4: Simplify right side
339,291.74x = 44,062,501,521.49 - Step 5: Solve for x
x = 44,062,501,521.49/339,291.74 - Step 6: Final answer
x = 129,866.12
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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.