Finding the Fourth Proportional to 291,605.63, 402,415.76 and 157,469.63
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Solution
The fourth proportional to 291,605.63, 402,415.76 and 157,469.63 is: 217,308.08
Step by Step Solution
- Step 1: Write the proportion equation
291,605.63 : 402,415.76 = 157,469.63 : x - Step 2: Convert to fraction form
291,605.63/402,415.76 = 157,469.63/x - Step 3: Cross multiply
291,605.63x = 402,415.76 × 157,469.63 - Step 4: Simplify right side
291,605.63x = 63,368,259,214.96 - Step 5: Solve for x
x = 63,368,259,214.96/291,605.63 - Step 6: Final answer
x = 217,308.08
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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.