Finding the Fourth Proportional to 208,603.57, 287,878.58 and 117,973.08
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Solution
The fourth proportional to 208,603.57, 287,878.58 and 117,973.08 is: 162,806.06
Step by Step Solution
- Step 1: Write the proportion equation
208,603.57 : 287,878.58 = 117,973.08 : x - Step 2: Convert to fraction form
208,603.57/287,878.58 = 117,973.08/x - Step 3: Cross multiply
208,603.57x = 287,878.58 × 117,973.08 - Step 4: Simplify right side
208,603.57x = 33,961,924,123.10 - Step 5: Solve for x
x = 33,961,924,123.10/208,603.57 - Step 6: Final answer
x = 162,806.06
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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.