Finding the Fourth Proportional to 278,312.24, 417,495.71 and 78,634.19
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Solution
The fourth proportional to 278,312.24, 417,495.71 and 78,634.19 is: 117,959.02
Step by Step Solution
- Step 1: Write the proportion equation
278,312.24 : 417,495.71 = 78,634.19 : x - Step 2: Convert to fraction form
278,312.24/417,495.71 = 78,634.19/x - Step 3: Cross multiply
278,312.24x = 417,495.71 × 78,634.19 - Step 4: Simplify right side
278,312.24x = 32,829,438,224.65 - Step 5: Solve for x
x = 32,829,438,224.65/278,312.24 - Step 6: Final answer
x = 117,959.02
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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.