Finding the Fourth Proportional to 212,656.54, 293,465.14 and 115,860.13
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Solution
The fourth proportional to 212,656.54, 293,465.14 and 115,860.13 is: 159,886.50
Step by Step Solution
- Step 1: Write the proportion equation
212,656.54 : 293,465.14 = 115,860.13 : x - Step 2: Convert to fraction form
212,656.54/293,465.14 = 115,860.13/x - Step 3: Cross multiply
212,656.54x = 293,465.14 × 115,860.13 - Step 4: Simplify right side
212,656.54x = 34,000,909,270.87 - Step 5: Solve for x
x = 34,000,909,270.87/212,656.54 - Step 6: Final answer
x = 159,886.50
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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.