Finding the Fourth Proportional to 286,692.96, 395,611.98 and 157,624.50
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Solution
The fourth proportional to 286,692.96, 395,611.98 and 157,624.50 is: 217,508.45
Step by Step Solution
- Step 1: Write the proportion equation
286,692.96 : 395,611.98 = 157,624.50 : x - Step 2: Convert to fraction form
286,692.96/395,611.98 = 157,624.50/x - Step 3: Cross multiply
286,692.96x = 395,611.98 × 157,624.50 - Step 4: Simplify right side
286,692.96x = 62,358,140,541.51 - Step 5: Solve for x
x = 62,358,140,541.51/286,692.96 - Step 6: Final answer
x = 217,508.45
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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.