Finding the Fourth Proportional to 278,564.19, 384,418.58 and 151,239.80
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Solution
The fourth proportional to 278,564.19, 384,418.58 and 151,239.80 is: 208,710.91
Step by Step Solution
- Step 1: Write the proportion equation
278,564.19 : 384,418.58 = 151,239.80 : x - Step 2: Convert to fraction form
278,564.19/384,418.58 = 151,239.80/x - Step 3: Cross multiply
278,564.19x = 384,418.58 × 151,239.80 - Step 4: Simplify right side
278,564.19x = 58,139,386,477.19 - Step 5: Solve for x
x = 58,139,386,477.19/278,564.19 - Step 6: Final answer
x = 208,710.91
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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.