Finding the Fourth Proportional to 236,931.08, 355,415.31 and 79,160.09
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Solution
The fourth proportional to 236,931.08, 355,415.31 and 79,160.09 is: 118,746.37
Step by Step Solution
- Step 1: Write the proportion equation
236,931.08 : 355,415.31 = 79,160.09 : x - Step 2: Convert to fraction form
236,931.08/355,415.31 = 79,160.09/x - Step 3: Cross multiply
236,931.08x = 355,415.31 × 79,160.09 - Step 4: Simplify right side
236,931.08x = 28,134,706,149.90 - Step 5: Solve for x
x = 28,134,706,149.90/236,931.08 - Step 6: Final answer
x = 118,746.37
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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.