Finding the Fourth Proportional to 485,750.16, 670,312.80 and 270,879.84
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Solution
The fourth proportional to 485,750.16, 670,312.80 and 270,879.84 is: 373,801.68
Step by Step Solution
- Step 1: Write the proportion equation
485,750.16 : 670,312.80 = 270,879.84 : x - Step 2: Convert to fraction form
485,750.16/670,312.80 = 270,879.84/x - Step 3: Cross multiply
485,750.16x = 670,312.80 × 270,879.84 - Step 4: Simplify right side
485,750.16x = 181,574,224,013.95 - Step 5: Solve for x
x = 181,574,224,013.95/485,750.16 - Step 6: Final answer
x = 373,801.68
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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.