Finding the Fourth Proportional to 239,292.21, 358,848.93 and 79,338.81
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Solution
The fourth proportional to 239,292.21, 358,848.93 and 79,338.81 is: 118,978.57
Step by Step Solution
- Step 1: Write the proportion equation
239,292.21 : 358,848.93 = 79,338.81 : x - Step 2: Convert to fraction form
239,292.21/358,848.93 = 79,338.81/x - Step 3: Cross multiply
239,292.21x = 358,848.93 × 79,338.81 - Step 4: Simplify right side
239,292.21x = 28,470,645,281.73 - Step 5: Solve for x
x = 28,470,645,281.73/239,292.21 - Step 6: Final answer
x = 118,978.57
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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.