Finding the Fourth Proportional to 286,881.80, 430,322.70 and 146,913.80
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Solution
The fourth proportional to 286,881.80, 430,322.70 and 146,913.80 is: 220,370.70
Step by Step Solution
- Step 1: Write the proportion equation
286,881.80 : 430,322.70 = 146,913.80 : x - Step 2: Convert to fraction form
286,881.80/430,322.70 = 146,913.80/x - Step 3: Cross multiply
286,881.80x = 430,322.70 × 146,913.80 - Step 4: Simplify right side
286,881.80x = 63,220,343,083.26 - Step 5: Solve for x
x = 63,220,343,083.26/286,881.80 - Step 6: Final answer
x = 220,370.70
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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.