Finding the Fourth Proportional to 156,977.30, 235,465.95 and 143,199.20
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Solution
The fourth proportional to 156,977.30, 235,465.95 and 143,199.20 is: 214,798.80
Step by Step Solution
- Step 1: Write the proportion equation
156,977.30 : 235,465.95 = 143,199.20 : x - Step 2: Convert to fraction form
156,977.30/235,465.95 = 143,199.20/x - Step 3: Cross multiply
156,977.30x = 235,465.95 × 143,199.20 - Step 4: Simplify right side
156,977.30x = 33,718,535,667.24 - Step 5: Solve for x
x = 33,718,535,667.24/156,977.30 - Step 6: Final answer
x = 214,798.80
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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.