Finding the Fourth Proportional to 205,050.30, 307,618.65 and 86,660.70
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Solution
The fourth proportional to 205,050.30, 307,618.65 and 86,660.70 is: 130,009.31
Step by Step Solution
- Step 1: Write the proportion equation
205,050.30 : 307,618.65 = 86,660.70 : x - Step 2: Convert to fraction form
205,050.30/307,618.65 = 86,660.70/x - Step 3: Cross multiply
205,050.30x = 307,618.65 × 86,660.70 - Step 4: Simplify right side
205,050.30x = 26,658,447,542.06 - Step 5: Solve for x
x = 26,658,447,542.06/205,050.30 - Step 6: Final answer
x = 130,009.31
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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.