Finding the Fourth Proportional to 387,923.63, 581,885.46 and 107,440.88
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Solution
The fourth proportional to 387,923.63, 581,885.46 and 107,440.88 is: 161,161.32
Step by Step Solution
- Step 1: Write the proportion equation
387,923.63 : 581,885.46 = 107,440.88 : x - Step 2: Convert to fraction form
387,923.63/581,885.46 = 107,440.88/x - Step 3: Cross multiply
387,923.63x = 581,885.46 × 107,440.88 - Step 4: Simplify right side
387,923.63x = 62,518,282,972.18 - Step 5: Solve for x
x = 62,518,282,972.18/387,923.63 - Step 6: Final answer
x = 161,161.32
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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.