Finding the Fourth Proportional to 438,437.30, 657,655.95 and 122,947.70
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Solution
The fourth proportional to 438,437.30, 657,655.95 and 122,947.70 is: 184,421.55
Step by Step Solution
- Step 1: Write the proportion equation
438,437.30 : 657,655.95 = 122,947.70 : x - Step 2: Convert to fraction form
438,437.30/657,655.95 = 122,947.70/x - Step 3: Cross multiply
438,437.30x = 657,655.95 × 122,947.70 - Step 4: Simplify right side
438,437.30x = 80,857,286,443.82 - Step 5: Solve for x
x = 80,857,286,443.82/438,437.30 - Step 6: Final answer
x = 184,421.55
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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.