Finding the Fourth Proportional to 235,675.85, 325,239.50 and 128,252.80
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Solution
The fourth proportional to 235,675.85, 325,239.50 and 128,252.80 is: 176,992.59
Step by Step Solution
- Step 1: Write the proportion equation
235,675.85 : 325,239.50 = 128,252.80 : x - Step 2: Convert to fraction form
235,675.85/325,239.50 = 128,252.80/x - Step 3: Cross multiply
235,675.85x = 325,239.50 × 128,252.80 - Step 4: Simplify right side
235,675.85x = 41,712,877,272.78 - Step 5: Solve for x
x = 41,712,877,272.78/235,675.85 - Step 6: Final answer
x = 176,992.59
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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.