Finding the Fourth Proportional to 250,281.72, 345,386.68 and 135,557.70
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Solution
The fourth proportional to 250,281.72, 345,386.68 and 135,557.70 is: 187,068.49
Step by Step Solution
- Step 1: Write the proportion equation
250,281.72 : 345,386.68 = 135,557.70 : x - Step 2: Convert to fraction form
250,281.72/345,386.68 = 135,557.70/x - Step 3: Cross multiply
250,281.72x = 345,386.68 × 135,557.70 - Step 4: Simplify right side
250,281.72x = 46,819,823,951.44 - Step 5: Solve for x
x = 46,819,823,951.44/250,281.72 - Step 6: Final answer
x = 187,068.49
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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.