Finding the Fourth Proportional to 426,828.24, 640,242.36 and 146,347.92
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Solution
The fourth proportional to 426,828.24, 640,242.36 and 146,347.92 is: 219,521.88
Step by Step Solution
- Step 1: Write the proportion equation
426,828.24 : 640,242.36 = 146,347.92 : x - Step 2: Convert to fraction form
426,828.24/640,242.36 = 146,347.92/x - Step 3: Cross multiply
426,828.24x = 640,242.36 × 146,347.92 - Step 4: Simplify right side
426,828.24x = 93,698,137,681.89 - Step 5: Solve for x
x = 93,698,137,681.89/426,828.24 - Step 6: Final answer
x = 219,521.88
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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.