Finding the Fourth Proportional to 454,810.19, 682,248.09 and 139,226.09
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Solution
The fourth proportional to 454,810.19, 682,248.09 and 139,226.09 is: 208,849.18
Step by Step Solution
- Step 1: Write the proportion equation
454,810.19 : 682,248.09 = 139,226.09 : x - Step 2: Convert to fraction form
454,810.19/682,248.09 = 139,226.09/x - Step 3: Cross multiply
454,810.19x = 682,248.09 × 139,226.09 - Step 4: Simplify right side
454,810.19x = 94,986,733,980.67 - Step 5: Solve for x
x = 94,986,733,980.67/454,810.19 - Step 6: Final answer
x = 208,849.18
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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.