Finding the Fourth Proportional to 239,312.76, 330,251.68 and 130,417.14
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Solution
The fourth proportional to 239,312.76, 330,251.68 and 130,417.14 is: 179,975.69
Step by Step Solution
- Step 1: Write the proportion equation
239,312.76 : 330,251.68 = 130,417.14 : x - Step 2: Convert to fraction form
239,312.76/330,251.68 = 130,417.14/x - Step 3: Cross multiply
239,312.76x = 330,251.68 × 130,417.14 - Step 4: Simplify right side
239,312.76x = 43,070,479,129.59 - Step 5: Solve for x
x = 43,070,479,129.59/239,312.76 - Step 6: Final answer
x = 179,975.69
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1.5x scale
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.