Finding the Fourth Proportional to 210,438.84, 315,661.14 and 117,535.80
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Solution
The fourth proportional to 210,438.84, 315,661.14 and 117,535.80 is: 176,305.31
Step by Step Solution
- Step 1: Write the proportion equation
210,438.84 : 315,661.14 = 117,535.80 : x - Step 2: Convert to fraction form
210,438.84/315,661.14 = 117,535.80/x - Step 3: Cross multiply
210,438.84x = 315,661.14 × 117,535.80 - Step 4: Simplify right side
210,438.84x = 37,101,484,618.81 - Step 5: Solve for x
x = 37,101,484,618.81/210,438.84 - Step 6: Final answer
x = 176,305.31
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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.