Finding the Fourth Proportional to 292,515.13, 438,772.70 and 70,899.13
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Solution
The fourth proportional to 292,515.13, 438,772.70 and 70,899.13 is: 106,348.70
Step by Step Solution
- Step 1: Write the proportion equation
292,515.13 : 438,772.70 = 70,899.13 : x - Step 2: Convert to fraction form
292,515.13/438,772.70 = 70,899.13/x - Step 3: Cross multiply
292,515.13x = 438,772.70 × 70,899.13 - Step 4: Simplify right side
292,515.13x = 31,108,602,697.75 - Step 5: Solve for x
x = 31,108,602,697.75/292,515.13 - Step 6: Final answer
x = 106,348.70
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1.5x scale
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.