Finding the Fourth Proportional to 286,888.13, 430,381.40 and 87,228.71
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Solution
The fourth proportional to 286,888.13, 430,381.40 and 87,228.71 is: 130,858.02
Step by Step Solution
- Step 1: Write the proportion equation
286,888.13 : 430,381.40 = 87,228.71 : x - Step 2: Convert to fraction form
286,888.13/430,381.40 = 87,228.71/x - Step 3: Cross multiply
286,888.13x = 430,381.40 × 87,228.71 - Step 4: Simplify right side
286,888.13x = 37,541,611,741.94 - Step 5: Solve for x
x = 37,541,611,741.94/286,888.13 - Step 6: Final answer
x = 130,858.02
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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.