Finding the Fourth Proportional to 278,417.12, 417,670.91 and 86,246.67
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Solution
The fourth proportional to 278,417.12, 417,670.91 and 86,246.67 is: 129,384.02
Step by Step Solution
- Step 1: Write the proportion equation
278,417.12 : 417,670.91 = 86,246.67 : x - Step 2: Convert to fraction form
278,417.12/417,670.91 = 86,246.67/x - Step 3: Cross multiply
278,417.12x = 417,670.91 × 86,246.67 - Step 4: Simplify right side
278,417.12x = 36,022,725,143.37 - Step 5: Solve for x
x = 36,022,725,143.37/278,417.12 - Step 6: Final answer
x = 129,384.02
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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.