Finding the Fourth Proportional to 239,155.86, 330,028.29 and 130,257.75
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Solution
The fourth proportional to 239,155.86, 330,028.29 and 130,257.75 is: 179,751.99
Step by Step Solution
- Step 1: Write the proportion equation
239,155.86 : 330,028.29 = 130,257.75 : x - Step 2: Convert to fraction form
239,155.86/330,028.29 = 130,257.75/x - Step 3: Cross multiply
239,155.86x = 330,028.29 × 130,257.75 - Step 4: Simplify right side
239,155.86x = 42,988,742,491.75 - Step 5: Solve for x
x = 42,988,742,491.75/239,155.86 - Step 6: Final answer
x = 179,751.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.