Finding the Fourth Proportional to 536,290.21, 804,434.57 and 136,931.05
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Solution
The fourth proportional to 536,290.21, 804,434.57 and 136,931.05 is: 205,396.38
Step by Step Solution
- Step 1: Write the proportion equation
536,290.21 : 804,434.57 = 136,931.05 : x - Step 2: Convert to fraction form
536,290.21/804,434.57 = 136,931.05/x - Step 3: Cross multiply
536,290.21x = 804,434.57 × 136,931.05 - Step 4: Simplify right side
536,290.21x = 110,152,070,326.40 - Step 5: Solve for x
x = 110,152,070,326.40/536,290.21 - Step 6: Final answer
x = 205,396.38
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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.