Finding the Fourth Proportional to 307,927.20, 461,890.80 and 202,807.20
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Solution
The fourth proportional to 307,927.20, 461,890.80 and 202,807.20 is: 304,210.80
Step by Step Solution
- Step 1: Write the proportion equation
307,927.20 : 461,890.80 = 202,807.20 : x - Step 2: Convert to fraction form
307,927.20/461,890.80 = 202,807.20/x - Step 3: Cross multiply
307,927.20x = 461,890.80 × 202,807.20 - Step 4: Simplify right side
307,927.20x = 93,674,779,853.76 - Step 5: Solve for x
x = 93,674,779,853.76/307,927.20 - Step 6: Final answer
x = 304,210.80
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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.