Finding the Fourth Proportional to 156,930.01, 236,248.97 and 142,979.65
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Solution
The fourth proportional to 156,930.01, 236,248.97 and 142,979.65 is: 215,247.51
Step by Step Solution
- Step 1: Write the proportion equation
156,930.01 : 236,248.97 = 142,979.65 : x - Step 2: Convert to fraction form
156,930.01/236,248.97 = 142,979.65/x - Step 3: Cross multiply
156,930.01x = 236,248.97 × 142,979.65 - Step 4: Simplify right side
156,930.01x = 33,778,794,328.56 - Step 5: Solve for x
x = 33,778,794,328.56/156,930.01 - Step 6: Final answer
x = 215,247.51
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.