Finding the Fourth Proportional to 239,316.98, 330,257.50 and 130,421.37
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Solution
The fourth proportional to 239,316.98, 330,257.50 and 130,421.37 is: 179,981.52
Step by Step Solution
- Step 1: Write the proportion equation
239,316.98 : 330,257.50 = 130,421.37 : x - Step 2: Convert to fraction form
239,316.98/330,257.50 = 130,421.37/x - Step 3: Cross multiply
239,316.98x = 330,257.50 × 130,421.37 - Step 4: Simplify right side
239,316.98x = 43,072,634,462.26 - Step 5: Solve for x
x = 43,072,634,462.26/239,316.98 - Step 6: Final answer
x = 179,981.52
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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.