Finding the Fourth Proportional to 190,820.70, 286,000.65 and 97,278.30
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Solution
The fourth proportional to 190,820.70, 286,000.65 and 97,278.30 is: 145,799.99
Step by Step Solution
- Step 1: Write the proportion equation
190,820.70 : 286,000.65 = 97,278.30 : x - Step 2: Convert to fraction form
190,820.70/286,000.65 = 97,278.30/x - Step 3: Cross multiply
190,820.70x = 286,000.65 × 97,278.30 - Step 4: Simplify right side
190,820.70x = 27,821,657,030.90 - Step 5: Solve for x
x = 27,821,657,030.90/190,820.70 - Step 6: Final answer
x = 145,799.99
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1.5x scale
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.